Crosis, the Purger

Flying
Whenever Crosis deals combat damage to a player, you may pay {2}{B}. If you do, choose a color, then that player reveals their hand and discards all cards of that color.

Kyren Glider

Mountain

Festering Goblin

When this creature dies, target creature gets -1/-1 until end of turn.

Waterfront Bouncer

{U}, {T}, Discard a card: Return target creature to its owner's hand.

Traumatize

Target player mills half their library, rounded down.

Elderfang Disciple

When this creature enters, each opponent discards a card.

Nightscape Apprentice

{U}, {T}: Put target creature you control on top of its owner's library.
{R}, {T}: Target creature gains first strike until end of turn.

Wall of Tears

Defender (This creature can't attack.)
Whenever this creature blocks a creature, return that creature to its owner's hand at end of combat.

Last Rites

Discard any number of cards. Target player reveals their hand, then you choose a nonland card from it for each card discarded this way. That player discards those cards.

Doomsday Specter

Flying
When this creature enters, return a blue or black creature you control to its owner's hand.
Whenever this creature deals combat damage to a player, look at that player's hand and choose a card from it. The player discards that card.

Dragon Breath

Enchant creature
Enchanted creature has haste.
{R}: Enchanted creature gets +1/+0 until end of turn.
When a creature with mana value 6 or greater enters, you may return this card from your graveyard to the battlefield attached to that creature.

Bloodfell Caves

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {B} or {R}.

Words of Waste

{1}: The next time you would draw a card this turn, each opponent discards a card instead.

Shivan Zombie

Swiftwater Cliffs

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {U} or {R}.

Bag of Devouring

Whenever you sacrifice another nontoken artifact or creature, exile it.
{2}, {T}, Sacrifice another artifact or creature: Draw a card.
{3}, {T}, Sacrifice this artifact: Roll a d10. Return up to X cards from among cards exiled with this artifact to their owners' hands, where X is the result.

Raise the Palisade

Choose a creature type. Return all creatures that aren't of the chosen type to their owners' hands.

Crypt of the Eternals

When this land enters, you gain 1 life.
{T}: Add {C}.
{1}, {T}: Add {U}, {B}, or {R}.

Urborg Emissary

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)
When this creature enters, if it was kicked, return target permanent to its owner's hand.

Death Cultist

Sacrifice this creature: Target player loses 1 life and you gain 1 life.

Stupor

Target opponent discards a card at random, then discards a card.

Undying Rage

Enchant creature
Enchanted creature gets +2/+2 and can't block.
When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.

Plated Geopede

First strike
Landfall — Whenever a land you control enters, this creature gets +2/+2 until end of turn.

Morgue Toad

Megrim

Whenever an opponent discards a card, this enchantment deals 2 damage to that player.

Fellwar Stone

{T}: Add one mana of any color that a land an opponent controls could produce.

Vodalian Zombie

Salt Marsh

This land enters tapped.
{T}: Add {U} or {B}.

Don't Have

Nightscape Battlemage

Kicker {2}{U} and/or {2}{R} (You may pay an additional {2}{U} and/or {2}{R} as you cast this spell.)
When this creature enters, if it was kicked with its {2}{U} kicker, return up to two target nonblack creatures to their owners' hands.
When this creature enters, if it was kicked with its {2}{R} kicker, destroy target land.

Phyrexian Tyranny

Whenever a player draws a card, that player loses 2 life unless they pay {2}.

Path of Ancestry

This land enters tapped.
{T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Surrakar Banisher

When this creature enters, you may return target tapped creature to its owner's hand.

Foul Rebirth

Sacrifice a non-Demon creature. If you do, create a 4/3 white and black Vampire Demon creature token with flying.

Promise of Aclazotz

At the beginning of your end step, you may sacrifice a non-Demon creature. If you do, populate. (Create a token that's a copy of a creature token you control.)

Promise of Aclazotz // Foul Rebirth

Devastation Tide

Return all nonland permanents to their owners' hands.
Miracle {1}{U} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

Butcher of Malakir

Flying
Whenever this creature or another creature you control dies, each opponent sacrifices a creature of their choice.

Repel

Put target creature on top of its owner's library.

Dimir Guildgate

Crosis's Attendant

{1}, Sacrifice this creature: Add {U}{B}{R}.

Razorfin Hunter

{T}: This creature deals 1 damage to any target.

Aura Graft

Gain control of target Aura that's attached to a permanent. Attach it to another permanent it can enchant.

Repulse

Return target creature to its owner's hand.
Draw a card.

Cruel Grimnarch

Deathtouch
When this creature enters, each opponent discards a card. For each opponent who can't, you gain 4 life.

Abyssal Persecutor

Flying, trample
You can't win the game and your opponents can't lose the game.

Falkenrath Noble

Flying
Whenever this creature or another creature dies, target player loses 1 life and you gain 1 life.

Bloodfire Dwarf

{R}, Sacrifice this creature: It deals 1 damage to each creature without flying.

Tainted Isle

{T}: Add {C}.
{T}: Add {U} or {B}. Activate only if you control a Swamp.

Eternal Thirst

Enchant creature
Enchanted creature has lifelink and "Whenever a creature an opponent controls dies, put a +1/+1 counter on this creature." (Damage dealt by a creature with lifelink also causes its controller to gain that much life.)

Contaminated Aquifer

({T}: Add {U} or {B}.)
This land enters tapped.

Jwar Isle Refuge

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {U} or {B}.

Temporary Insanity

Untap target creature with power less than the number of cards in your graveyard and gain control of it until end of turn. That creature gains haste until end of turn.

Dragon Shadow

Enchant creature
Enchanted creature gets +1/+0 and has fear. (It can't be blocked except by artifact creatures and/or black creatures.)
When a creature with mana value 6 or greater enters, you may return this card from your graveyard to the battlefield attached to that creature.

Ravenous Rats

When this creature enters, target opponent discards a card.

Recoil

Return target permanent to its owner's hand. Then that player discards a card.

Akoum Refuge

Hurl Through Hell

Exile target creature. Until the end of your next turn, you may cast that card and you may spend mana as though it were mana of any color to cast that spell.

Tainted Peak

{T}: Add {C}.
{T}: Add {B} or {R}. Activate only if you control a Swamp.

Act of Treason

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and {T} this turn.)

Urborg Volcano

This land enters tapped.
{T}: Add {B} or {R}.

Dismal Backwater

Seal of Removal

Sacrifice this enchantment: Return target creature to its owner's hand.

Barrin's Unmaking

Return target permanent to its owner's hand if that permanent shares a color with the most common color among all permanents or a color tied for most common.

Hoodwink

Return target artifact, enchantment, or land to its owner's hand.

Bojuka Bog

This land enters tapped.
When this land enters, exile target player's graveyard.
{T}: Add {B}.

Jilt

Kicker {1}{R} (You may pay an additional {1}{R} as you cast this spell.)
Return target creature to its owner's hand. If this spell was kicked, it deals 2 damage to another target creature.

Swamp

Island

Boomerang

Return target permanent to its owner's hand.

Commander's Sphere

{T}: Add one mana of any color in your commander's color identity.
Sacrifice this artifact: Draw a card.

Cabal Inquisitor

Threshold — {1}{B}, {T}, Exile two cards from your graveyard: Target player discards a card. Activate only as a sorcery and only if seven or more cards are in your graveyard.

Into the Roil

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)
Return target nonland permanent to its owner's hand. If this spell was kicked, draw a card.

Smoldering Marsh

({T}: Add {B} or {R}.)
This land enters tapped unless you control two or more basic lands.

Robber Fly

Flying
Whenever this creature becomes blocked, defending player discards all the cards in their hand, then draws that many cards.

Sadistic Glee

Enchant creature
Whenever a creature dies, put a +1/+1 counter on enchanted creature.

Fiendlash

Equipped creature gets +2/+0 and has reach.
Whenever equipped creature is dealt damage, it deals damage equal to its power to target player or planeswalker.
Equip {2}{R}

Exotic Orchard

Izzet Chemister

Haste
{R}, {T}: Exile target instant or sorcery card from your graveyard.
{1}{R}, {T}, Sacrifice this creature: Cast any number of cards exiled with this creature without paying their mana costs.

Temple of Malice

This land enters tapped.
When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
{T}: Add {B} or {R}.

Words of Wind

{1}: The next time you would draw a card this turn, each player returns a permanent they control to its owner's hand instead.

Vicious Kavu

Whenever this creature attacks, it gets +2/+0 until end of turn.

Exquisite Blood

Whenever an opponent loses life, you gain that much life.

Wheel and Deal

Any number of target opponents each discard their hands, then draw seven cards.
Draw a card.

Marsh Crocodile

When this creature enters, return a blue or black creature you control to its owner's hand.
When this creature enters, each player discards a card.

Aven Fogbringer

Flying
When this creature enters, return target land to its owner's hand.

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Nightscape Familiar

Blue spells and red spells you cast cost {1} less to cast.
{1}{B}: Regenerate this creature.

Sparkmage Apprentice

When this creature enters, it deals 1 damage to any target.

Crosis's Catacombs

When this land enters, sacrifice it unless you return a non-Lair land you control to its owner's hand.
{T}: Add {U}, {B}, or {R}.

Threaten

Untap target creature and gain control of it until end of turn. That creature gains haste until end of turn. (It can attack and {T} this turn.)

Unsummon

Return target creature to its owner's hand.

Time of Ice

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Tap target creature an opponent controls. It doesn't untap during its controller's untap step for as long as you control this Saga.
III — Return all tapped creatures to their owners' hands.

Nightscape Master

{U}{U}, {T}: Return target creature to its owner's hand.
{R}{R}, {T}: This creature deals 2 damage to target creature.

Warped Devotion

Whenever a permanent is returned to a player's hand, that player discards a card.

Bladewing's Thrall

This creature has flying as long as you control a Dragon.
When a Dragon enters, you may return this card from your graveyard to the battlefield.