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{U}: Watercourser gets +1/-1 until end of turn.

Flying Channel — {U}, Discard Shinen of Flight's Wings: Target creature gains flying until end of turn.

Flash When Snapcaster Mage enters the battlefield, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashbac...

{2}{U}, {T}: Draw a card. If you have nine or more cards in hand, flip Jushi Apprentice.

Choose one — • Target creature gains islandwalk until end of turn. (It can't be blocked as long as defending player controls an Island.) • Target...

Look at the top five 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 th...

Target opponent exiles cards from the top of their library until they exile a nonland card. Until end of turn, you may cast that card without payin...

Whenever you cast an instant spell, you may pay {1}. If you do, draw a card.

Enchant creature When Winter's Rest enters the battlefield, tap enchanted creature. As long as you control another snow permanent, enchanted crea...

Enchant creature Enchanted creature can't attack or block, and its activated abilities can't be activated. When enchanted creature becomes the ta...

When Phantasmal Bear becomes the target of a spell or ability, sacrifice it.

Defender, flying Prevent all combat damage that would be dealt to Guard Gomazoa.

Soulbond (You may pair this creature with another unpaired creature when either enters the battlefield. They remain paired for as long as you contr...

Other Merfolk creatures you control get +1/+1. {T}: Target Merfolk creature can't be blocked this turn.

Target player mills half their library, rounded down.

Level up {1} ({1}: Put a level counter on this. Level up only as a sorcery.) LEVEL 2-3 3/3 Flying LEVEL 4+ 4/4 Flying Other Merfolk creatures you c...

{T}: Target creature with power 2 or less can't be blocked this turn.

Flying Whenever Thrummingbird deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another...

Return all creatures you control to their owner's hand.

You may have Clone enter the battlefield as a copy of any creature on the battlefield.

Slipstream Serpent can't attack unless defending player controls an Island. When you control no Islands, sacrifice Slipstream Serpent. Morph {5}{...

Counter target spell. If that spell is countered this way, put that card on the top or bottom of its owner's library instead of into that player's ...

If an opponent cast three or more spells this turn, you may pay {0} rather than pay this spell's mana cost. Exile any number of target spells.

When Paperfin Rascal enters the battlefield, clash with an opponent. If you win, put a +1/+1 counter on Paperfin Rascal. (Each clashing player reve...