When Aethersnipe enters the battlefield, return target nonland permanent to its owner's hand.

Evoke {1}{U}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Sacrifice Alchemist's Apprentice: Draw a card.

{T}, Exile cards from your graveyard equal to the number of opponents you have: Target creature card in your graveyard gains encore until end of turn. The encore cost is equal to its mana cost. (Exile the creature card and pay its mana cost: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.

You draw a card at the beginning of the next turn's upkeep.

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

When Archaeomancer enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

{T}: Add {C}.

Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

When Ashen-Skin Zubera dies, target opponent discards a card for each Zubera that died this turn.

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Whenever Blind Zealot deals combat damage to a player, you may sacrifice it. If you do, destroy target creature that player controls.

Draw two cards, then discard two cards.

Charcoal Diamond enters the battlefield tapped.

{T}: Add {B}.

Mage Hand -- {T}: Untap target permanent not named Clever Conjurer. Activate only as a sorcery.

Flying

When Cloud of Faeries enters the battlefield, untap up to two lands.

Cycling {2} ({2}, Discard this card: Draw a card.)

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

({T}: Add {U} or {B}.)

Contaminated Aquifer enters the battlefield tapped.

Flying

When Crow of Dark Tidings enters the battlefield or dies, mill two cards. (Put the top two cards of your library into your graveyard.)

Flying

When Death's-Head Buzzard dies, all creatures get -1/-1 until end of turn.

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

Dimir Aqueduct enters the battlefield tapped.

When Dimir Aqueduct enters the battlefield, return a land you control to its owner's hand.

{T}: Add {U}{B}.

{1}, {T}: Add {U}{B}.

Target creature you control gets +0/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

{2}{U}, {T}, Discard a card, Sacrifice a land: Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.)

Everflowing Chalice enters the battlefield with a charge counter on it for each time it was kicked.

{T}: Add {C} for each charge counter on Everflowing Chalice.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

When Eyeblight Cullers dies, create three 1/1 green Elf Warrior creature tokens, then mill three cards. (Put the top three cards of your library into your graveyard.)

Flying

Whenever Falkenrath Noble or another creature dies, target player loses 1 life and you gain 1 life.

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

Until end of turn, target creature gains "When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it."

When Filigree Familiar enters the battlefield, you gain 2 life.

When Filigree Familiar dies, draw a card.

When Fleshbag Marauder enters the battlefield, each player sacrifices a creature.

When Floating-Dream Zubera dies, draw a card for each Zubera that died this turn.

Draw two cards, then discard two cards. Untap up to three lands.

{T}, Sacrifice Gangrenous Zombies: Gangrenous Zombies deals 1 damage to each creature and each player. If you control a snow Swamp, Gangrenous Zombies deals 2 damage to each creature and each player instead.

Flying

When Gorging Vulture enters the battlefield, mill four cards. You gain 1 life for each creature card milled this way. (To mill a card, put the top card of your library into your graveyard.)

When Gray Merchant of Asphodel enters the battlefield, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

Whenever Halimar Excavator or another Ally enters the battlefield under your control, target player mills X cards, where X is the number of Allies you control.

({T}: Add {U} or {B}.)

Ice Tunnel enters the battlefield tapped.

Whenever another snow permanent enters the battlefield under your control, you may have target player mill two cards.

Flying

Whenever Impaler Shrike deals combat damage to a player, you may sacrifice it. If you do, draw three cards.

Rally -- Whenever Kalastria Healer or another Ally enters the battlefield under your control, each opponent loses 1 life and you gain 1 life.

{T}, Discard a nonblack card: Draw a card.

{T}, Discard a black card: Draw two cards, then discard one of them.

Shadow (This creature can block or be blocked by only creatures with shadow.)

Whenever Looter il-Kor deals damage to an opponent, draw a card, then discard a card.

When Maalfeld Twins dies, create two 2/2 black Zombie creature tokens.

When Maestros Theater enters the battlefield, sacrifice it. When you do, search your library for a basic Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle and you gain 1 life.

Mill two cards.

Draw a card.

{T}: Draw a card, then discard a card.

{T}: Add {C}.

{1}, {T}, Sacrifice Mind Stone: Draw a card.

Exploit (When this creature enters the battlefield, you may sacrifice a creature.)

When Mindleech Ghoul exploits a creature, each opponent exiles a card from their hand.

Target creature you control gets +0/+1 and gains hexproof until end of turn.

Overload {1}{U} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")

Flying

When Mulldrifter enters the battlefield, draw two cards.

Evoke {2}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

({T}: Add {U}.)

Mystic Sanctuary enters the battlefield tapped unless you control three or more other Islands.

When Mystic Sanctuary enters the battlefield untapped, you may put target instant or sorcery card from your graveyard on top of your library.

Bigby's Hand -- {T}: Untap two other target permanents. Activate only as a sorcery and only once each turn.

{T}: Untap target blue creature.

{T}: Choose target non-Wall creature the active player has controlled continuously since the beginning of the turn. That creature attacks this turn if able. Destroy it at the beginning of the next end step if it didn't attack this turn. Activate only before attackers are declared.

Surveil 2, then draw two cards. Notion Rain deals 2 damage to you. (To surveil 2, look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

When Obscura Storefront enters the battlefield, sacrifice it. When you do, search your library for a basic Plains, Island, or Swamp card, put it onto the battlefield tapped, then shuffle and you gain 1 life.

Peat Bog enters the battlefield tapped with two depletion counters on it.

{T}, Remove a depletion counter from Peat Bog: Add {B}{B}. If there are no depletion counters on Peat Bog, sacrifice it.

Flying

When Peregrine Drake enters the battlefield, untap up to five lands.

Target player mills two cards. Draw two cards.

{T}, Sacrifice Priest of the Haunted Edge: Target creature gets -X/-X until end of turn, where X is the number of snow lands you control. Activate only as a sorcery.

Exploit (When this creature enters the battlefield, you may sacrifice a creature.)

When Repository Skaab exploits a creature, return target instant or sorcery card from your graveyard to your hand.

Exile target artifact or creature. Its controller creates a 4/4 blue and red Elemental creature token.

Whenever another blue creature enters the battlefield under your control, target player mills two cards.

Saprazzan Skerry enters the battlefield tapped with two depletion counters on it.

{T}, Remove a depletion counter from Saprazzan Skerry: Add {U}{U}. If there are no depletion counters on Saprazzan Skerry, sacrifice it.

Whenever Scaretiller becomes tapped, choose one --

• You may put a land card from your hand onto the battlefield tapped.

• Return target land card from your graveyard to the battlefield tapped.

When Sedraxis Alchemist enters the battlefield, if you control a blue permanent, return target nonland permanent to its owner's hand.

Whenever Selhoff Occultist or another creature dies, target player mills a card.

Target creature you control gets +1/+1 and gains hexproof until end of turn. Untap it. (It can't be the target of spells or abilities your opponents control.)

Sky Diamond enters the battlefield tapped.

{T}: Add {U}.

When Slum Reaper enters the battlefield, each player sacrifices a creature.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control."

Sacrifice Teardrop Kami: You may tap or untap target creature.

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

{T}: Draw a card, then discard a card.

Target player mills two cards.

Draw a card.

Until end of turn, target creature gains "When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it."

Whenever Vengeful Dead or another Zombie dies, each opponent loses 1 life.

Flying

Exploit (When this creature enters the battlefield, you may sacrifice a creature.)

When Vulturous Aven exploits a creature, you draw two cards and you lose 2 life.

Waterfront District enters the battlefield tapped.

{T}: Add {U} or {B}.

{2}{U}{B}, {T}, Sacrifice Waterfront District: Draw a card.

({T}: Add {B}.)

Witch's Cottage enters the battlefield tapped unless you control three or more other Swamps.

When Witch's Cottage enters the battlefield untapped, you may put target creature card from your graveyard on top of your library.

Choose one --

• Foil Their Scheme -- Counter target spell.

• Learn Their Secrets -- Draw two cards, then discard two cards.