Draw two cards, then discard two cards.

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

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

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}: Draw a card, then discard a card.

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

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

Whenever another creature dies, you may gain 1 life.

When Demon's Disciple enters the battlefield, each player sacrifices a creature or planeswalker.

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

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

Menace (This creature can't be blocked except by two or more creatures.) When Underdark Explorer enters the battlefield, you take the initiative.

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.

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

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.)

Constellation — Whenever Grim Guardian or another enchantment enters the battlefield under your control, each opponent loses 1 life.

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

When Malakir Blood-Priest enters the battlefield, each opponent loses X life and you gain X life, where X is the number of creatures in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Whenever you gain life, each opponent loses 1 life.

Flying Whenever you create or sacrifice a token, each opponent loses 1 life.

Whenever a token you control leaves the battlefield, each opponent loses 1 life and you gain 1 life.

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

When Serrated Scorpion dies, it deals 2 damage to each opponent and you gain 2 life.

{T}: Each player loses 1 life for each Zombie on the battlefield.

When Soulcage Fiend dies, each player loses 3 life.

When Tattered Mummy dies, each opponent loses 2 life.

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.

Counter target spell.

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

Destroy target nonartifact creature.

Counter target spell that targets a creature.

Counter target spell unless its controller pays {3}.

Counter target noncreature spell.

This spell costs {1} less to cast for each creature card in your graveyard. Exile target creature or planeswalker.

{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.)

Barren Moor enters the battlefield tapped. {T}: Add {B}. Cycling {B} ({B}, 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.

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}.

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

({T}: Add {U} or {B}.) Ice Tunnel enters the battlefield tapped.

Lonely Sandbar enters the battlefield tapped. {T}: Add {U}. Cycling {U} ({U}, Discard this card: Draw a card.)

({T}: Add {U}.)

({T}: Add {B}.)

Enchant land Whenever enchanted land becomes tapped, its controller mills three cards.

Surveil 5. (Look at the top five cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Target player mills three cards. Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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

Surveil 3. (Look at the top three cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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

Menace Whenever another creature with power 2 or less enters the battlefield under your control, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

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.)

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

Target player mills four cards. You shuffle up to four cards from your graveyard into your library. Replicate {2}{U}{U} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Surveil 5. (Look at the top five cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Target player mills two cards. Draw a card.

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

Add {B}{B}{B}.

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

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

{T}: Add {C}. {T}: Roll the planar die. Activate only as a sorcery.

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

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

Flying {T}: Add one mana of any color.

Star Compass enters the battlefield tapped. {T}: Add one mana of any color that a basic land you control could produce.

You have no maximum hand size. {T}: Add {C}.

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

Enchant creature {U}: Tap enchanted creature. {U}: Untap enchanted creature.

Counter target spell that targets a creature. Draw a card.

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

Target player draws two cards. Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

{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.

Whenever you gain life, each opponent loses 1 life.

When Etched Familiar dies, each opponent loses 2 life and you gain 2 life.

{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.

({U/P} can be paid with either {U} or 2 life.) Look at target player's hand. Draw a card.

Whenever a creature you control dies, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

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

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) Cycling—Pay 2 life. (Pay 2 life, Discard this card: Draw a card.)

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.