The Moonbase

Low Gravity — All creatures have "{2}: This creature gains flying until end of turn. Activate only as a sorcery."
Whenever chaos ensues, for each opponent, choose up to one target creature card in that player's graveyard. Put those cards onto the battlefield face down under your control. They're 2/2 Cyberman artifact creatures.

Maddened Oread

As long as five or more Revelers are on the battlefield, Maddened Oread attacks each turn if able.
Hero's Reward — When Maddened Oread leaves the battlefield, each player gains 3 life.

Stensia

Whenever a creature deals damage to one or more players for the first time each turn, put a +1/+1 counter on it.
Whenever chaos ensues, each creature you control gains "{T}: This creature deals 1 damage to target player or planeswalker" until end of turn.

The Pieces Are Coming Together

When you set this scheme in motion, draw two cards. Artifact spells you cast this turn cost {2} less to cast.

Chromium

Flying
Rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)
At the beginning of your upkeep, sacrifice Chromium unless you pay {W}{U}{B}.

Sanctum of Serra

When you planeswalk away from Sanctum of Serra, destroy all nonland permanents.
Whenever chaos ensues, you may have your life total become 20.

Hedron Fields of Agadeem

Creatures with power 7 or greater can't attack or block.
Whenever chaos ensues, create a 7/7 colorless Eldrazi creature token with annihilator 1. (Whenever it attacks, defending player sacrifices a permanent of their choice.)

Antarctic Research Base

When you planeswalk to Antarctic Research Base and at the beginning of your upkeep, investigate.
Whenever chaos ensues, put X +1/+1 counters on target creature you control, where X is the number of artifacts you control. It becomes a Plant in addition to its other types.

Bow of the Hunter

Equipped creature has "{T}: This creature deals 2 damage to any target."
Equip {2}

Wanted!

Before the game, shuffle at least 6 unique bounty cards into a face-down pile.
As the starting player's third turn begins, reveal the top bounty card.
Claim the revealed bounty during your turn and collect your reward!
As each turn begins, if no bounty is being offered, reveal the next one. If the pile is empty, shuffle all claimed bounties and restock
If the bounty went unclaimed last turn, increase its reward to the next level.
Rewards
1 — Create a Treasure token
2 — Create two Treasure tokens
3 — Create two Treasure tokens *or* draw a card
4 — (Max) Create two Treasure tokens *and* draw a card.

Bounty: Sleepy Sovka

At the beginning of your end step, if you cast no spells this turn, collect your reward.

Bounty: Sleepy Sovka // Wanted!

Impulsive Charge

At the beginning of combat this turn, all Revelers gain haste until end of turn and attack this combat if able.

City of the Daleks

Whenever you attack, target opponent loses X life, where X is the number of artifacts you control.
Whenever chaos ensues, for each opponent, you create a 3/3 black Dalek artifact creature token with menace that attacks that opponent this turn if able. Those tokens gain haste. Sacrifice them at the beginning of the next end step.

Massacre Totem

At the beginning of the Horde's first main phase, reveal an additional card from the top of the Horde's library. The Horde casts that card.
Hero's Reward — When Massacre Totem is put into a graveyard from anywhere, put the top seven cards of the Horde's library into its graveyard.

Introductions Are in Order

When you set this scheme in motion, choose one —
• Search your library for a creature card, reveal it, put it into your hand, then shuffle.
• You may put a creature card from your hand onto the battlefield.

Realms Befitting My Majesty

When you set this scheme in motion, search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Tahngarth

Bounty: Vara Beth Hannifer

At the beginning of your end step, if the nearest opponent to your right as the turn began was dealt combat damage this turn, collect your reward.

Bounty: Vara Beth Hannifer // Wanted!

Horizon Boughs

All permanents untap during each player's untap step.
Whenever chaos ensues, you may search your library for up to three basic land cards, put them onto the battlefield tapped, then shuffle.

Fields of Summer

Whenever a player casts a spell, that player may gain 2 life.
Whenever chaos ensues, you may gain 10 life.

Mutual Epiphany

When you encounter Mutual Epiphany, each player draws four cards. (Then planeswalk away from this phenomenon.)

Immersturm

Whenever a creature enters, that creature's controller may have it deal damage equal to its power to any target of their choice.
Whenever chaos ensues, exile target creature, then return it to the battlefield under its owner's control.

Littjara

When you planeswalk to Littjara and at the beginning of your upkeep, create a 2/2 blue Shapeshifter creature token with changeling. (It is every creature type.)
Whenever chaos ensues, choose a creature type. Put a +1/+1 counter on each creature you control of that type.

Bounty: Paq, Fleeting Filcher

At the beginning of your end step, if there are four or more card types among cards in your graveyard, collect your reward.

Bounty: Paq, Fleeting Filcher // Wanted!

Vaevictis Asmadi

Flying
At the beginning of your upkeep, sacrifice Vaevictis Asmadi unless you pay {B}{R}{G}.
{B}: Vaevictis Asmadi gets +1/+0 until end of turn.
{R}: Vaevictis Asmadi gets +1/+0 until end of turn.
{G}: Vaevictis Asmadi gets +1/+0 until end of turn.

Spatial Merging

When you encounter Spatial Merging, reveal cards from the top of your planar deck until you reveal two plane cards. Simultaneously planeswalk to both of them. Put all other cards revealed this way on the bottom of your planar deck in any order.

Nephalia

At the beginning of your end step, mill seven cards. Then return a card at random from your graveyard to your hand.
Whenever chaos ensues, return target card from your graveyard to your hand.

Enigma Ridges

When you planeswalk to Enigma Ridges, each player who controls fewer lands than the player who controls the most lands searches their library for a number of basic land cards less than or equal to the difference, reveals them, puts them into their hand, then shuffles.
Whenever chaos ensues, draw a card, then you may put a land card from your hand onto the battlefield.

Pheres-Band Revelers

Hero's Reward — When Pheres-Band Revelers leaves the battlefield, each player draws a card.

The Warmonger

Exile The Warmonger: Creatures you control get +2/+0 and gain haste until end of turn.

Goldmeadow

Whenever a land enters, that land's controller creates three 0/1 white Goat creature tokens.
Whenever chaos ensues, create a 0/1 white Goat creature token.

Amy's Home

When you planeswalk to Amy's Home and at the beginning of your upkeep, you may exile a nonland card from your hand with a number of time counters on it equal to its mana value. If it doesn't have suspend, it gains suspend.
Whenever chaos ensues, time travel. (For each suspended card you own and each permanent you control with a time counter on it, you may add or remove a time counter.)

Bounty: The Outsider

At the beginning of your end step, if you cast a spell from anywhere other than your hand this turn, collect your reward.

Bounty: The Outsider // Wanted!

My Undead Horde Awakens

(An ongoing scheme remains face up until it's abandoned.)
At the beginning of your end step, you may put target creature card from an opponent's graveyard onto the battlefield under your control.
When a creature put onto the battlefield with this scheme dies, abandon this scheme.

Disorienting Glower

Players can't cast spells until the Hydra's next turn.

Grixis

Blue, black, and/or red creature cards in your graveyard have unearth. The unearth cost is equal to the card's mana cost. (Pay the card's mana cost: Return it to the battlefield. The creature gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)
Whenever chaos ensues, put target creature card from a graveyard onto the battlefield under your control.

Edge of Malacol

If a creature you control would untap during your untap step, put two +1/+1 counters on it instead.
Whenever chaos ensues, untap each creature you control.

Don't Have

Bounty: Lyssa, Sterling Collector

At the beginning of your end step, if the player with the most cards in hand or tied for most cards as the turn began was dealt combat damage this turn, collect your reward.

Bounty: Lyssa, Sterling Collector // Wanted!

UNIT Headquarters

When you planeswalk to UNIT Headquarters and at the beginning of your upkeep, create a tapped 1/1 white Soldier creature token.
Whenever chaos ensues, put a +1/+1 counter on each creature you control.

Shiv

All creatures have "{R}: This creature gets +1/+0 until end of turn."
Whenever chaos ensues, create a 5/5 red Dragon creature token with flying.

Intervention of Keranos

At the beginning of combat this turn, Intervention of Keranos deals 3 damage to each creature.

Touch of the Horned God

Whenever a Minotaur attacks this turn, it gains deathtouch until end of turn.

Selesnya Loft Gardens

If an effect would create one or more tokens, it creates twice that many of those tokens instead.
If an effect would put one or more counters on a permanent, it puts twice that many of those counters on that permanent instead.
Whenever chaos ensues, until end of turn, whenever you tap a land for mana, add one mana of any type that land produced.

The Cheetah Planet

When you planeswalk to The Cheetah Planet and at the beginning of your upkeep, put two +1/+1 counters on target non-Cat creature you control. It becomes a Cat in addition to its other types.
Whenever chaos ensues, all Cats gain provoke until end of turn. (Whenever a Cat attacks, its controller may have target creature defending player controls untap and block it if able.)

Cliffside Market

When you planeswalk to Cliffside Market and at the beginning of your upkeep, you may exchange life totals with target player.
Whenever chaos ensues, exchange control of two target permanents that share a card type.

Stairs to Infinity

Players have no maximum hand size.
Whenever you roll the planar die, draw a card.
Whenever chaos ensues, reveal the top card of your planar deck. You may put it on the bottom of your planar deck.

Every Hope Shall Vanish

When you set this scheme in motion, each opponent reveals their hand. Choose a nonland card from each of those hands. Those players discard those cards.

Strike the Weak Spot

Destroy target Head. If that Head was elite, the Hydra takes an extra turn after this one.

Reality Shaping

When you encounter Reality Shaping, starting with you, each player may put a permanent card from their hand onto the battlefield. (Then planeswalk away from this phenomenon.)

Mirri

If a basic land you control is tapped for mana, it produces mana of a color of your choice instead of any other type.

Dance, Pathetic Marionette

When you set this scheme in motion, each opponent reveals cards from the top of their library until they reveal a creature card. Choose one of the revealed creature cards and put it onto the battlefield under your control. Put all other cards revealed this way into their owners' graveyards.

The Hippodrome

All creatures get -5/-0.
Whenever chaos ensues, you may destroy target creature if its power is 0 or less.

Chaotic Aether

When you encounter Chaotic Aether, each blank roll of the planar die is a {CHAOS} roll until a player planeswalks away from a plane. (Then planeswalk away from this phenomenon.)

Pools of Becoming

At the beginning of your end step, put the cards in your hand on the bottom of your library in any order, then draw that many cards.
Whenever chaos ensues, reveal the top three cards of your planar deck. Each of the revealed cards' chaos abilities triggers. Then put the revealed cards on the bottom of your planar deck in any order.

Norn's Seedcore

When you planeswalk to Norn's Seedcore, chaos ensues.
Whenever chaos ensues, reveal cards from the top of your planar deck until you reveal a plane card. Planeswalk to it, except don't planeswalk away from any plane. Put the rest of the revealed cards on the bottom of your planar deck in any order.

Tazeem

Creatures can't block.
Whenever chaos ensues, draw a card for each land you control.

The Golden City of Orazca

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
Whenever one or more creatures you control deal combat damage to a player, create a Treasure token. Then draw a card if you have the city's blessing.
Whenever chaos ensues, you may put a permanent card from your hand onto the battlefield tapped.

Strixhaven

Instant and sorcery spells players cast have demonstrate. (Whenever a player casts an instant or sorcery spell, they may copy it. If they do, they choose an opponent to also copy it. Players may choose new targets for their copies.)
Whenever chaos ensues, return up to one target instant or sorcery card from a graveyard to its owner's hand.

Xenagos Ascended

Xenagos Ascended can't leave the battlefield as long as a Reveler is on the battlefield.
When Xenagos Ascended leaves the battlefield, each player wins the game.

Every Last Vestige Shall Rot

When you set this scheme in motion, you may pay {X}. If you do, put each nonland permanent target player controls with mana value X or less on the bottom of its owner's library.

The Iron Guardian Stirs

When you set this scheme in motion, create a 4/6 colorless Golem artifact creature token.

Gardens of Tranquil Repose

Suspended Animation — Whenever a creature dies, exile it. Its controller scries 1.
Whenever chaos ensues, create X 3/3 black Dalek artifact creature tokens with menace, where X is one plus the number of cards exiled with Gardens of Tranquil Repose.

Naya

You may play any number of lands on each of your turns.
Whenever chaos ensues, target red, green, or white creature you control gets +1/+1 until end of turn for each land you control.

Glen Elendra

At end of combat, you may exchange control of target creature you control that dealt combat damage to a player this combat and target creature that player controls.
Whenever chaos ensues, gain control of target creature you own.

Lake Silencio

Still Point in Time — All spells have split second. (As long as a spell with split second is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Whenever chaos ensues, Lake Silencio deals 6 damage to target creature an opponent controls. If a creature dealt damage this way would die this turn, exile it instead.

Maraxus

Gavony

All creatures have vigilance.
Whenever chaos ensues, creatures you control gain indestructible until end of turn.

The Harvester

Fixed Point in Time

When you encounter Fixed Point in Time, until your next turn, if a player would planeswalk as a result of rolling the planar die, chaos ensues instead. (Then planeswalk away from this phenomenon.)

Your Will Is Not Your Own

When you set this scheme in motion, gain control of target creature an opponent controls until end of turn. Untap that creature. It gets +3/+3 and gains trample and haste until end of turn.

Murasa

Whenever a nontoken creature enters, its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.
Whenever chaos ensues, target land becomes a 4/4 creature that's still a land.

Krosa

All creatures get +2/+2.
Whenever chaos ensues, you may add {W}{U}{B}{R}{G}.

Ketria

When you planeswalk to Ketria and at the beginning of your upkeep, put your choice of a vigilance, menace, or trample counter on target creature you control.
Whenever chaos ensues, exile cards from the top of your library until you exile a nonland permanent card. Put that card onto the battlefield or into your hand.

Ghirapur

At the beginning of combat on your turn, until end of turn, each noncreature, non-Vehicle artifact you control becomes a 5/3 Vehicle in addition to its other types and gains trample, haste, and crew 2.
Whenever chaos ensues, return target noncreature artifact card from your graveyard to your hand.

Enhancement Stickers

Equipped creature has vigilance and can block an additional creature each combat.
Whenever equipped creature deals damage, put a +1/+1 counter on it.
Whenever equipped creature deals damage, scry 1.
Equipped creature has protection from enchantments.
Equipped creature has double strike.
Whenever equipped creature deals damage, put a 1/1 white Soldier creature token onto the battlefield.
Whenever equipped creature deals damage, untap two target lands.

Raven's Run

All creatures have wither. (They deal damage to creatures in the form of -1/-1 counters.)
Whenever chaos ensues, put a -1/-1 counter on target creature, two -1/-1 counters on another target creature, and three -1/-1 counters on a third target creature.

Garruk the Slayer

0: Put a 2/2 green Wolf creature token onto the battlefield.
+4: Target Wolf creature gets +1/+0 and gains deathtouch until end of turn.
−10: Destroy target creature. Put loyalty counters on Garruk the Slayer equal to that creature's toughness.
−25: Destroy all creatures Garruk the Slayer doesn't control.

North Pole Research Base

At the beginning of your upkeep, target opponent draws a card and creates a Treasure token.
Whenever chaos ensues, create a 2/2 white Alien creature token. When you do, tap target nontoken creature an opponent controls. Put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Lash of the Tyrant

Equipped creature gets +1/+2 and has deathtouch.
Equip {2}

Unleash the Flux

When you encounter Unleash the Flux, each player sacrifices a nonland permanent of their choice, then you flip a coin. If you lose the flip, repeat this process. (Then planeswalk away from this phenomenon.)

Grove of the Dreampods

When you planeswalk to Grove of the Dreampods and at the beginning of your upkeep, reveal cards from the top of your library until you reveal a creature card. Put that card onto the battlefield and the rest on the bottom of your library in a random order.
Whenever chaos ensues, return target creature card from your graveyard to the battlefield.

The Dead Shall Serve

When you set this scheme in motion, for each opponent, put up to one target creature card from that player's graveyard onto the battlefield under your control. Each of those creatures attacks its owner each combat if able.

Onakke Catacomb

All creatures are black and have deathtouch.
Whenever chaos ensues, creatures you control get +1/+0 and gain first strike until end of turn.

Minotaur Goreseeker

Haste
Minotaur Goreseeker attacks each turn if able.

Agyrem

Whenever a white creature dies, return it to the battlefield under its owner's control at the beginning of the next end step.
Whenever a nonwhite creature dies, return it to its owner's hand at the beginning of the next end step.
Whenever chaos ensues, creatures can't attack you until a player planeswalks.

Orzhova

When you planeswalk away from Orzhova, each player returns all creature cards from their graveyard to the battlefield.
Whenever chaos ensues, for each opponent, exile up to one target creature card from that player's graveyard.

The Protector

{T}: Prevent the next 1 damage that would be dealt to any target this turn.

Minamo

Whenever a player casts a spell, that player may draw a card.
Whenever chaos ensues, each player may return a blue card from their graveyard to their hand.

Ravenous Brute Head

Hero's Reward — When Ravenous Brute Head leaves the battlefield, each player gains 2 life and draws a card.

Your Puny Minds Cannot Fathom

When you set this scheme in motion, draw four cards. You have no maximum hand size until your next turn.

The Eon Fog

Players skip their untap steps.
Whenever chaos ensues, untap all permanents you control.

The Doctor's Tomb

If a creature would die, instead exile it and that creature's controller loses 2 life.
Whenever chaos ensues, redistribute any number of players' life totals. (Each of those players gets one life total back.)

Human-Time Lord Meta-Crisis

When you encounter Human—Time Lord Meta-Crisis, each player chooses one or two creatures they control. Each player creates a token that's a copy of the first creature they chose, except it isn't legendary. Then each player who chose a second creature puts a number of +1/+1 counters on the token they created equal to the power of the second creature they chose. (Then planeswalk away from this phenomenon.)

Bounty: Squeakers the Sly

At the beginning of your end step, if a legendary creature you controlled attacked alone this turn, collect your reward.

Bounty: Squeakers the Sly // Wanted!

Hydra Head

Hero's Reward — When Hydra Head leaves the battlefield, each player gains 2 life.

Axe of the Warmonger

Equipped creature gets +2/+1 and has haste.
Equip {2}

The Tyrant

Exile The Tyrant: Creatures your opponents control get -1/-1 until end of turn.

The Explorer

You may play an additional land on each of your turns.

Izzet Steam Maze

Whenever a player casts an instant or sorcery spell, that player copies it. The player may choose new targets for the copy.
Whenever chaos ensues, instant and sorcery spells you cast this turn cost {3} less to cast.