Banding Sliver

All Slivers have banding. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Indicate

Chea, Friend to Maybe Too Many

Familiar spells you cast have flash. (Bats, Birds, Cats, Dragons, Faeries, Foxes, Frogs, Imps, Lizards, and Spiders are familiars, as well as any creature with "Familiar" in its name.)
{T}: Add X {G} and each opponent loses X life, where X is the number of familiars you control.

Gobland

(Gobland isn't a spell, it's affected by summoning sickness, and it has "{T}: Add {R}.")
Gobland can't block.

Madlands

Madlands enters the battlefield tapped.
{T}: Add {B} or {R}.
Madness {0} (If you discard this card, discard it into exile. When you do, play it for its madness cost or put it into your graveyard. You can play a land only during your turn and only if you have an available land play remaining.)

Flavor Disaster

Reach
When Flavor Disaster enters the battlefield or when it's turned face up, target creature gets +X/+X until end of turn, where X is Flavor Disaster's power.
Negamorph {1}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its negamorph cost and put a -1/-1 counter on it.)

Halving Season

If an opponent would create one or more tokens, they create half that many of each of those kinds of tokens instead, rounded down.
If an opponent would put one or more counters on a permanent or player, they put half that many of each of those kinds of counters on that permanent or player instead, rounded down.

How to Keep an Izzet Mage Busy

Return How to Keep an Izzet Mage Busy to its owner's hand.

Tax Taker

Whenever an opponent pays a tax from a spell or permanent you control, create a number of Treasure tokens equal to the amount of mana they paid. (This happens each time a spell you control or an ability of a permanent you control causes an opponent to pay extra mana. Cards that can tax opponents include Mana Tithe, Esper Sentinel, and Ghostly Prison.)

Five Kids in a Trenchcoat

Five Kids in a Trenchcoat counts as five creatures for spells and effects that count the number of creatures you control.

Krosan Adaptation

Enchant creature
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies. The copies enter as tokens.)
Enchanted creature gets +1/+0 and has vigilance.

Gen, Confider of Ages

Gen gets +1/+1 for each different year of release among other nontoken permanents you control. (For example, if a card was released in 1993, that's one year of release. Specific editions matter.)
Whenever Gen attacks, if its power is 30 or greater, you win the game.

Mountain

Form of the Approach of the Second Sun

When this enchantment enters, you gain 7 life. You become a card until you leave your library or that library is shuffled. Put yourself seventh from the top, balancing the cards on top of you on your head.
When you draw yourself, you win the game.
When one or more cards fall off your head, exile them and all cards on your head, then sacrifice this enchantment.

Island

Call from the Grave

Put a random creature from a random graveyard into play under your control. Call from the Grave deals to you an amount of damage equal to that creature's casting cost.

Loopy Lobster

Four-faced (Whenever this becomes tapped, move it to the next stage, or to stage 1 if it's at stage 4.)
Stage 1 — (1/4)
Stage 2 — (4/1) Evolve
Stage 3 — (2/4) {U}: Loopy Lobster gets +1/-1 until end of turn.
Stage 4 — (4/4) Vigilance. {T}: Draw 2 cards.

Generated Horizons

At the beginning of your upkeep, create a Forest land token.

Lantern of Undersight

You draw cards from the bottom of your library instead of the top of your library.

Fetching Garden

({T}: Add {G} or {W}.)
Fetching Garden enters the battlefield tapped if it was played from your hand.

Duelists' Convocation International

When Duelists' Convocation International enters the battlefield, choose a 10-digit number at random and write it down.
Whenever you play a land or cast a spell, if it shares a mana value with one or more uncrossed digits in the chosen number, cross out one of those digits and draw a card. Then if all ten digits are crossed out, you win the game.

Form of the Mulldrifter

When Form of the Mulldrifter enters, draw two cards.
You may cast creature cards from your hand as though they were the card Mulldrifter. (You can still evoke this way. They're Mulldrifters.)

Liliana's Undead Minion

You can't lose the game.
+1: Each opponent loses 1 life.
−4: Destroy target creature.

Liliana's Other Contract

When Liliana's Other Contract enters the battlefield, you draw three cards and you lose 3 life.
If you would lose the game, instead exile Liliana's Other Contract, then return it to the battlefield transformed under your control.

Liliana's Other Contract // Liliana's Undead Minion

Barry's Land

Do-Over

Restart the turn, except with Do-Over in exile. (First, return all cards to where they were as the turn began. For information from hidden zones like the hand, reconstruct as best you can, and do the rest at random.)

Emrakul and Chatterfang

Devoid (This card has no color.)
Flying, Trample, Forestwalk, protection from non-Squirrels
When you cast Emrakul and Chatterfang, create 15 1/1 green Eldrazi Squirrel Scion creature tokens with "Sacrifice this creature: Add {G} or {B}".

Imaginary Friends

Create three 0/0 white Spirit creature tokens with flying.

Plains

Kaya, Ghost Haunter

0: Exile Kaya, Ghost Haunter haunting target creature for as long as that creature remains on the battlefield.
−1: You get an emblem with, "At the beginning of your upkeep, this emblem deals 3 damage to the owner of target haunted creature."
−2: You get an emblem with, "At the beginning of your upkeep, gain control of target haunted creature for as long as it remains haunted."

Frogkin Kidnapper

When Frogkin Kidnapper enters, target opponent reveals their hand. Choose a nonland card from it. Ransom that card. (Exile it. Its owner may pay {3} at any time to return it to their hand.)

Hidetsugu's Poison Rite

Target player with exactly seven poison counters loses the game.

Mox Poison

{T}: Add one mana of any color. You get two poison counters.

Awoken Nephilim

During deck construction, name a Nephilim card originally printed in Guildpact. Awoken Nephilim has that card's color identity and is a copy of that card in all zones except it's also Legendary.

Impatient Iguana

If Impatient Iguana is in your opening hand and you're not the starting player, you may reveal it. If you do, you become the starting player.
Haste

Aggressive Crag

At the beginning of your combat step, tap Aggressive Crag.
{T}: Add {R} or {W}.

Don't Worry About It

Enchant card in your hand (This Aura remains on the battlefield. If you play enchanted card or it otherwise leaves your hand, put this Aura into the graveyard.)
Enchanted card costs {1} less to cast.
When you cast enchanted card, copy it.

Your Favorite Character

As the game begins, if Your Favorite Character is your commander, or as Your Favorite Character enters the battlefield if it's not your commander, name a character from the Magic storyline. Choose up to three colors, two creature types, and then two keywords from among vigilance, flying, haste, trample, and menace. Your Favorite Character has the chosen name, types, colors, and keywords.

Bombardment

Until end of turn, cards you own that aren't on the battlefield lose all card types, costs, names, and abilities and become red sorceries named Missile that cost {R} with "Missile deals 2 damage to any target."

Buried Ogre

You may begin the game with Buried Ogre in your graveyard. If you do, you lose 1 life.

Biting Remark

Scrycast {0} (If you see this card while scrying, you may reveal it and cast it by paying {0}.)
Flying

Pokey, the Scallywagg

Menace
If you would flip a coin, you may instead roll a d20. 1−10 is tails and 11−20 is heads. (It counts as rolling a die, not flipping a coin.)
If you would roll a d20, you may instead flip a coin. Tails is 1 and heads is 20. (It counts as flipping a coin, not rolling a die.)

Slivdrazi Monstrosity

Eldrazi you control are Slivers in addition to their other types.
Slivers you control have devoid and annihilator 1.
{3}: Create a 1/1 colorless Eldrazi Sliver creature token. It has "Sacrifice this creature: Add {C}."

Long-Term Phyresis Study

Poison Tolerance +1 (It takes an additional poison counter for you to lose the game to poison.)
When Long-Term Phyresis Study enters the battlefield, return up to one target creature card from your graveyard to your hand. Then, draw a card.

Slobad, Actually Just Fine

You can sacrifice creatures and artifacts interchangeably. (If an effect asks you to sacrifice one of them, you can sacrifice either.)
{1}, {T}, Sacrifice another artifact or creature: Put a rebuilding counter on Slobad.
{T}, Remove 3 Rebuilding Counters from Slobad: Create a token that's a copy of Bosh, Iron Golem.

Memory Bank

Draw a card.
Bank (If you cast Memory Bank from your hand, exile it until the end of the match. You may cast it from exile during another game this match. It still counts toward your deck minimum.)

A Girl and Her Dogs

When A Girl and Her Dogs enters the battlefield and at the beginning of your upkeep, create a 1/1 white legendary Dog creature token and name it.
Whenever A Girl and Her Dogs attacks, it gets +1/+1 until end of turn for each legendary creature you control.

Maro's Gone Nuts

Double any effect that doubles. (It quadruples.)

Geometric Weird

At the beginning of each end step, you may have Geometric Weird's base power and toughness each become equal to the greatest number of spells and abilities from different sources that were on the stack simultaneously that turn.

Colossal Dreadmaw and Storm Crow

White Rhystic Study

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

High Troller

All targeted spells and abilities cost {2} less and have their targets chosen randomly.

Swamp

Mothers Yamazaki

Partner with itself (When this enters, target player may put Mothers Yamazaki into their hand from their library, then shuffle. A Commander deck can include two of this card, and they can be your commanders.)
As long as you control exactly two permanents named Mothers Yamazaki, the "legend rule" doesn't apply to them, and Samurai you control get +2/+2 and have vigilance and haste.

Good Knight

First Strike
You can't cast Good Knight if you're on the Phyrexian team.
If Good Knight is on the battlefield at the end of the game, score an additional point for the Mirran team.

Frontier Explorer

{3}, {T}: Until end of turn, you may play one basic Plains card from outside the game.

Their

Target opponent gains control of target creature you control.

There

Exile target creature you control, then return it to the battlefield under its owner's control.

There // They're // Their

Sliv-Mizzet, Hivemind

Slivers you control have flying and "Whenever you draw a card, this creature deals 1 damage to any target" and "{T}: Draw a card."

Intangible Vibes

All creatures are tokens. (They're considered tokens for spells and abilities. After a creature leaves the battlefield, it ceases to exist.)

Convention Maro

Whenever you cast a spell that [CHOICE A], create a green Elemental creature token named Maro with "This creature's power and toughness are each equal to the number of [CHOICE B]."
— As you create your deck, choose an [A] and a [B] —
• [A1] "is an Elemental" | [A2] "has a watermark or landscape orientation" | [A3] "targets a creature you control"
• [B1] "cards in your hand" | [B2] "card types among cards in your graveyard" | [B3] "artists among nonland, nontoken permanents you control"

Domesticated Mammoth

Domesticated Mammoth enters with a token copy of Pacifism attached to it.

Gold Mine

{T}: Add {C}.
Legacy — {T}, Mark one of Gold Mine's unmarked nodes: Add one mana of any color.
☐, ☐, ☐, ☐, ☐

Learned Learner

As long as you have a maximum hand size other than 7, Learned Learner has "{T}: Draw a card."

Forest

Naturalize 2

Destroy target artifact, enchantment, emblem, or gameplay tracker. (Trackers include play aids such as dungeons, city's blessing, and monarch. When you destroy it, the associated object or designation is removed from the game.)

Wowzer, the Aspirational

Whenever Wowzer, the Aspirational attacks, if you have an {E}, control a Blood, a Clue, a Food, a Map, a Powerstone, and a Treasure, are the monarch, and have the city's blessing and the initiative, you win the game.

Wastes

Experiment Five

{1}{Z}: Put a +1/+2 counter on Experiment Five. ({Z} is paid with one mana from any source that could produce two or more colors of mana.)

One with Death

Damn

Destroy target creature. A creature destroyed this way can't be regenerated.
Overload {2}{W}{W} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

The Colossal Dreadmaw

Trample
You may cast creature cards from your hand as though they were the card Colossal Dreadmaw. (They become Colossal Dreadmaws.)