Whenever a creature you control dies, you draw a card and you lose 1 life.

Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays {X}, where X is Esper Sentinel's power.

Whenever a creature dies, that creature's controller may draw a card.

Morph {B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) Whenever another nontoken creature you control dies, draw a card.

Whenever a nontoken creature you control dies, Midnight Reaper deals 1 damage to you and you draw a card.

Skip your draw step. Whenever you discard a card, exile that card from your graveyard. Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

Partner with Yannik, Scavenging Sentinel (When this creature enters the battlefield, target player may put Yannik into their hand from their library, then shuffle.) Menace Whenever another creature you control leaves the battlefield, if it had one or more counters on it, you draw a card and you lose 1 life.

Equipped creature gets +1/-1. Whenever equipped creature dies, draw two cards. Equip {1}

({T}: Add {G}.)

({T}: Add {W}.)

({T}: Add {B}.)

When Abzan Ascendancy enters the battlefield, put a +1/+1 counter on each creature you control. Whenever a nontoken creature you control dies, create a 1/1 white Spirit creature token with flying.

Whenever another nontoken creature enters the battlefield under your control, bolster 1. (Choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.)

Enchant creature card in a graveyard When Animate Dead enters the battlefield, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with Animate Dead." Return enchanted creature card to the battlefield under your control and attach Animate Dead to it. When Animate Dead leaves the battlefield, that creature's controller sacrifices it. Enchanted creature gets -1/-0.

Flying Whenever a player attacks one of your opponents, if that opponent has more life than another of your opponents, that attacking player draws a card and you put two +1/+1 counters on a creature you control.

Flash When Caller of the Claw enters the battlefield, create a 2/2 green Bear creature token for each nontoken creature put into your graveyard from the battlefield this turn.

When Cathodion dies, add {C}{C}{C}.

Shadow (This creature can block or be blocked by only creatures with shadow.) If a card would be put into an opponent's graveyard from anywhere, instead exile it with a void counter on it. {T}, Sacrifice Dauthi Voidwalker: Choose an exiled card an opponent owns with a void counter on it. You may play it this turn without paying its mana cost.

Whenever one or more creature cards leave your graveyard, create a 1/1 black Bat creature token with flying.

When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.

Fiend Artisan gets +1/+1 for each creature card in your graveyard. {X}{B/G}, {T}, Sacrifice another creature: Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle. Activate only as a sorcery.

Whenever another creature enters the battlefield under your control, put a +1/+1 counter on that creature.

When Kitchen Finks enters the battlefield, you gain 2 life. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Flying Whenever a creature you control without flying dies, return it to the battlefield under its owner's control with a flying counter on it.

When Priest of Gix enters the battlefield, add {B}{B}{B}.

When a creature you control dies, sacrifice Promise of Bunrei. If you do, create four 1/1 colorless Spirit creature tokens.

Whenever you activate an ability, if it isn't a mana ability, you may pay {2}. If you do, copy that ability. You may choose new targets for the copy.

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.) Whenever one or more +1/+1 counters are put on Scurry Oak, you may create a 1/1 green Squirrel creature token.

Whenever a creature you control leaves the battlefield, if it had counters on it, put those counters on The Ozolith. At the beginning of combat on your turn, if The Ozolith has counters on it, you may move all counters from The Ozolith onto target creature.

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

Whenever a creature dies, put a charge counter on Black Market. At the beginning of your precombat main phase, add {B} for each charge counter on Black Market.

{T}: Add {G}. Put a -1/-1 counter on Devoted Druid: Untap Devoted Druid.

Fertilid enters the battlefield with two +1/+1 counters on it. {1}{G}, Remove a +1/+1 counter from Fertilid: Target player searches their library for a basic land card, puts it onto the battlefield tapped, then shuffles.

Whenever Pawn of Ulamog or another nontoken creature you control dies, you may create a 0/1 colorless Eldrazi Spawn creature token. It has "Sacrifice this creature: Add {C}."

Whenever another creature you control dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

When Prosperous Innkeeper enters the battlefield, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.") Whenever another creature enters the battlefield under your control, you gain 1 life.

When Rishkar, Peema Renegade enters the battlefield, put a +1/+1 counter on each of up to two target creatures. Each creature you control with a counter on it has "{T}: Add {G}."

Sacrifice Sakura-Tribe Elder: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

{T}: Add {C}{C}.

Artifact and enchantment spells your opponents cast cost {2} more to cast. Sacrifice Aura of Silence: Destroy target artifact or enchantment.

When Knight of Autumn enters the battlefield, choose one — • Put two +1/+1 counters on Knight of Autumn. • Destroy target artifact or enchantment. • You gain 4 life.

When Plaguecrafter enters the battlefield, each player sacrifices a creature or planeswalker. Each player who can't discards a card.

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

Sacrifice a creature: Add {C}{C}.

Sacrifice a creature: Put a +1/+1 counter on Bloodflow Connoisseur.

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

Carrion Feeder can't block. Sacrifice a creature: Put a +1/+1 counter on Carrion Feeder.

Whenever a permanent becomes untapped, that permanent's controller mills a card.

Flying Whenever Stinkweed Imp deals combat damage to a creature, destroy that creature. Dredge 5 (If you would draw a card, you may mill five cards instead. If you do, return this card from your graveyard to your hand.)

When Woe Strider enters the battlefield, create a 0/1 white Goat creature token. Sacrifice another creature: Scry 1. Escape—{3}{B}{B}, Exile four other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.) Woe Strider escapes with two +1/+1 counters on it.

Flash Vigilance When Guardian of Faith enters the battlefield, any number of other target creatures you control phase out. (Treat them and anything attached to them as though they don't exist until their controller's next turn.)

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

{T}: Target creature you control gains protection from the color of your choice until end of turn.

Sacrifice Spore Frog: Prevent all combat damage that would be dealt this turn.

Whenever Blood Artist or another creature dies, target player loses 1 life and you gain 1 life.

Whenever another creature enters the battlefield under your control, each opponent loses 1 life.

Whenever Cruel Celebrant or another creature or planeswalker you control dies, each opponent loses 1 life and you gain 1 life.

Return any number of permanent cards with different names from your graveyard to the battlefield.

Exile the top card of your library. If it's a permanent card, you may put it onto the battlefield. If you do, repeat this process.