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Mutate {4}{B}{B} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature...

When this creature enters, tap target red or green creature an opponent controls. That creature doesn't untap during its controller's untap step fo...

Mutate {2}{W}{W} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature...

Flash (You may cast this spell any time you could cast an instant.) Flying Other creatures you control with flying get +1/+1.

At the beginning of combat on your turn, choose a kind of counter at random that this creature doesn't have on it from among flying, first strike, ...

When this creature enters, create a 1/1 colorless Thopter artifact creature token with flying. Artifact creatures you control have haste. (They can...

Deathtouch At the beginning of your upkeep, if your opponents control no permanents with bounty counters on them, put a bounty counter on target cr...

Mutate {2}{U/B}{G}{G} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the cre...

Indestructible As long as your devotion to blue is less than five, Thassa isn't a creature. (Each {U} in the mana costs of permanents you control c...

Haste Whenever you cast a spell that targets this creature, put a +1/+1 counter on this creature, then scry 1.

Flash (You may cast this spell any time you could cast an instant.) When this creature enters, counter target activated ability. (Mana abilities ca...

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) {2}{G/U}{G/U}: Mill two cards, then return a nonland card of...

Embalm {3}{U} ({3}{U}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Snake Warrior with no ma...

Flying Afterlife 1 (When this creature dies, create a 1/1 white and black Spirit creature token with flying.)

Reach When this creature enters, for each opponent, destroy target noncreature permanent that player controls. For each permanent destroyed this wa...

When this creature enters, destroy target land.

Defender, hexproof {T}: Add one mana of any color.

Flying When this creature enters, you may put a creature card with mana value 3 or less from your hand or graveyard onto the battlefield. That crea...

Flying Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Islandwalk (This creature can't be blocked as long as defending player controls an Island.) All lands are Islands in addition to their other types....

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

Flying, haste, protection from white {5}{R}{R}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes mon...

{6}{R}{R}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.) When this creature becomes m...

{T}, Exert this creature: Create a 1/1 white Warrior creature token with vigilance. (An exerted creature won't untap during your next untap step.)