Flying

When Aarakocra Sneak enters the battlefield, you take the initiative.

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.)

{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.

When Azure Fleet Admiral enters the battlefield, you become the monarch.

Azure Fleet Admiral can't be blocked by creatures the monarch controls.

Barren Moor enters the battlefield tapped.

{T}: Add {B}.

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

Flash

Enchant creature

At the beginning of your upkeep, you lose 1 life.

{0}: Regenerate enchanted creature.

When Blood Fountain enters the battlefield, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.")

{3}{B}, {T}, Sacrifice Blood Fountain: Return up to two target creature cards from your graveyard to your hand.

Bojuka Bog enters the battlefield tapped.

When Bojuka Bog enters the battlefield, exile target player's graveyard.

{T}: Add {B}.

{T}: Add one mana of any color.

{4}, {T}: Each player who controls a permanent named Bonder's Ornament draws a card.

Flying

When Cadaver Imp enters the battlefield, you may return target creature card from your graveyard to your hand.

Draw two cards, then discard two cards.

Animate Chains -- When Chain Devil enters the battlefield, each player sacrifices a nontoken creature.

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.

Target player draws three cards. Then that player discards two cards unless they discard a land card.

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

Contaminated Aquifer enters the battlefield tapped.

Counter target spell.

{X}: Crypt Rats deals X damage to each creature and each player. Spend only black mana on X.

{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}.

When Dinrova Horror enters the battlefield, return target permanent to its owner's hand, then that player discards a card.

When Dusk Legion Zealot enters the battlefield, you draw a card and you lose 1 life.

{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.

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.

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.)

Deathtouch

When Guildsworn Prowler dies, if it wasn't blocking, draw a card.

{T}: Add {C}.

{3}, {T}, Sacrifice Haunted Fengraf: Return a creature card at random from your graveyard to your hand.

{T}: Add one mana of any color.

{2}, {T}: Exile target card from a graveyard.

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

Ice Tunnel enters the battlefield tapped.

Flying

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

{T}: Add {B}.

{1}{B}{B}, {T}, Sacrifice Infernal Idol: You draw two cards and you lose 2 life.

({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}.)

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

Lonely Sandbar enters the battlefield tapped.

{T}: Add {U}.

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

Undergrowth -- When Lotleth Giant enters the battlefield, it deals 1 damage to target opponent for each creature card in your graveyard.

Draw three cards.

Islandcycling {1} ({1}, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)

When Man-o'-War enters the battlefield, return target creature to its owner's hand.

Flying

At the beginning of combat on your turn, each player mills three cards.

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.

Flying

When Nocturnal Feeder dies, each opponent loses 2 life and you gain 2 life.

{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.

When Organ Hoarder enters the battlefield, look at the top three cards of your library, then put one of them into your hand and the rest into your graveyard.

Flying

When Owl Familiar enters the battlefield, draw a card, then discard a card.

Path of Ancestry enters the battlefield 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.)

Flying

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

Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.

Exile target artifact or creature. Its controller creates a 1/1 blue Bird creature token with flying.

Foretell {U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

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

When Rishadan Cutpurse enters the battlefield, each opponent sacrifices a permanent unless they pay {1}.

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

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

Flying

When Skyscanner enters the battlefield, draw a card.

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

If you control a Swamp, you may pay 4 life rather than pay this spell's mana cost.

Destroy target nonblack creature. It can't be regenerated.

Enchant creature

Pay 2 life: Regenerate enchanted creature.

({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}.)

({T}: Add {B}.)

({T}: Add {B}.)

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

Deathtouch

When Thorn of the Black Rose enters the battlefield, you become the monarch.

Target player mills two cards.

Draw a card.

You may return an Island you control to its owner's hand rather than pay this spell's mana cost.

You may tap or untap target creature.

{B}, Discard a creature card: Return target creature card from your graveyard to your hand.

{U}, {T}, Discard a card: You may tap or untap target artifact, creature, or land.

Troll of Khazad-dûm can't be blocked except by three or more creatures.

Swampcycling {1} ({1}, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)

Menace (This creature can't be blocked except by two or more creatures.)

When Underdark Explorer enters the battlefield, you take the initiative.

Each player mills three cards. Then you return up to two creature cards from your graveyard to your hand. (To mill three cards, a player puts the top three cards of their library into their graveyard.)

When Vampire Spawn enters the battlefield, each opponent loses 2 life and you gain 2 life.

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

When Vicious Battlerager enters the battlefield, you take the initiative.

Spiked Retribution -- Whenever Vicious Battlerager becomes blocked by a creature, that creature's controller loses 5 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.