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

When Augur of Bolas enters the battlefield, look at the top three cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

When Burglar Rat enters the battlefield, each opponent discards a card.

Flying When Cavern Harpy enters the battlefield, return a blue or black creature you control to its owner's hand. Pay 1 life: Return Cavern Harpy to its owner's hand.

Flying When Cloud of Faeries enters the battlefield, untap up to two lands. Cycling {2} ({2}, Discard this card: Draw a card.)

This spell costs {1} less to cast for each instant and sorcery card in your graveyard.

When Dream Stalker enters the battlefield, return a permanent you control to its owner's hand.

When Elderfang Disciple enters the battlefield, each opponent discards a card.

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

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

As long as it's not your turn, spells you cast cost {1} less to cast.

When Nezumi Informant enters the battlefield, each opponent discards a card.

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

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

When Phyrexian Rager enters the battlefield, you draw a card and you lose 1 life.

Flying When Pilgrim's Eye enters the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Flying Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

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

Whenever another black creature enters the battlefield under your control, target creature gains intimidate until end of turn. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) When Shipwreck Dowser enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

Flying When Shrieking Drake enters the battlefield, return a creature you control to its owner's hand.

Flying When Skyscanner enters the battlefield, draw a card.

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

Flying {U}, {T}, Discard a card: Return target permanent you control to its owner's hand.

This spell costs {1} less to cast for each instant and sorcery card in your graveyard. Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)

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

When Virus Beetle enters the battlefield, each opponent discards a card.

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

When Whirlpool Rider enters the battlefield, shuffle the cards from your hand into your library, then draw that many cards.

{2}{U}: Return target white or black creature you control to its owner's hand.

Enchant creature or planeswalker you control When enchanted permanent dies or is put into exile, return that card to the battlefield under your control.

Return target permanent you control and target permanent you don't control to their owners' hands.

Return target permanent to its owner's hand.

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) Return target permanent to its owner's hand.

Counter target spell.

Each player returns a creature they control to its owner's hand.

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Counter target spell with mana value 4 or greater.

Counter target instant spell.

Exile up to two target creatures you control, then return those cards to the battlefield under their owner's control.

Destroy target nonblack creature.

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

Return target creature card from your graveyard to your hand. Recover {2}{B} (When a creature is put into your graveyard from the battlefield, you may pay {2}{B}. If you do, return this card from your graveyard to your hand. Otherwise, exile this card.)

You may return two Islands you control to their owner's hand rather than pay this spell's mana cost. Draw two cards.

Destroy target creature.

Counter target noncreature spell.

Counter target spell unless its controller discards their hand. Transmute {1}{U}{B} ({1}{U}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

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

Return target permanent you control to its owner's hand.

Choose two target creatures controlled by different players. Return those creatures to their owners' hands.

Return target creature to its owner's hand. Untap up to two lands.

You may exile a blue card from your hand rather than pay this spell's mana cost. Return target creature to its owner's hand.

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

Counter target spell that targets a permanent you control.

Return target creature to its owner's hand.

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

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}.

Dismal Backwater enters the battlefield tapped. When Dismal Backwater enters the battlefield, you gain 1 life. {T}: Add {U} or {B}.

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

Halimar Depths enters the battlefield tapped. When Halimar Depths enters the battlefield, look at the top three cards of your library, then put them back in any order. {T}: Add {U}.

({T}: Add {U}.)

({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.

Submerged Boneyard enters the battlefield tapped. {T}: Add {U} or {B}.

({T}: Add {B}.)

Return target instant or sorcery card from your graveyard to your hand. Exile Flood of Recollection.

Target player discards two cards at random.

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Return target creature card from your graveyard to your hand.

Return target nonland permanent to its owner's hand.