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Flying Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, p...

Counter target spell unless its controller pays {1} for each card in your graveyard. Cycling {2} ({2}, Discard this card: Draw a card.)

When Cloudform enters the battlefield, it becomes an Aura with enchant creature. Manifest the top card of your library and attach Cloudform to it. ...

{1}{U}: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.) Whenever one or more +1/+1 counters are put on Benthic ...

When Aquatic Incursion enters the battlefield, create two 1/1 blue Merfolk creature tokens with hexproof. (They can't be the targets of spells or a...

Creatures you control have flying. Creatures your opponents control lose flying and can't have or gain flying.

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

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 permanen...

Whenever you cast a noncreature spell, create an X/X blue Shark creature token with flying, where X is that spell's mana value. Cycling {X}{1}{U} ...

Create a token that's a copy of target permanent. If {R}{G} was spent to cast this spell, instead create a token that's a copy of that permanent, e...

Whenever you cast your first spell during each opponent's turn, draw a card.

Flying Whenever Trygon Predator deals combat damage to a player, you may destroy target artifact or enchantment that player controls.

Protection from green

Exile target creature. You draw cards equal to that creature's power. At the beginning of your next upkeep, return that card to the battlefield und...

{1}, Sacrifice a nontoken artifact: Create a 1/1 blue Thopter artifact creature token with flying. You gain 1 life.

When Pursued Whale enters the battlefield, each opponent creates a 1/1 red Pirate creature token with "This creature can't block" and "Creatures yo...

Companion — Your starting deck contains only cards with even mana values. (If this card is your chosen companion, you may put it into your hand fro...

Whenever Ghostly Pilferer becomes untapped, you may pay {2}. If you do, draw a card. Whenever an opponent casts a spell from anywhere other than t...

When Champion of Wits enters the battlefield, you may draw cards equal to its power. If you do, discard two cards. Eternalize {5}{U}{U} ({5}{U}{U}...

Raid — If you attacked this turn, you may pay {U} rather than pay this spell's mana cost. Counter target spell.

Defender Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature,...

Each instant and sorcery spell you cast costs {1} less to cast for each creature it targets. Heroic — Whenever you cast a spell that targets Battle...

Counter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.)

[+1]: Put two +1/+1 counters on up to one target creature you control. [0]: Until end of turn, Oko, the Trickster becomes a copy of target creature...