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Flash (You may cast this spell any time you could cast an instant.)

First strike (This creature deals combat damage before creatures without first strike.)

You may reveal an instant card you own from outside the game and put it into your hand. Exile Cunning Wish.

{tap}↷: This creature deals 4 damage to target attacking creature with flying.

({T}: Add {G}.)

Haste (This creature can attack and {T} as soon as it comes under your control.)

When this creature enters, reveal the top four cards of your library. Put all Goblin cards revealed this way into your hand and the rest on the bottom of your library in any order.

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

Other Merfolk get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)

({T}: Add {R}.)

All creatures get -1/-1 until end of turn for each Swamp you control.

({T}: Add {W}.)

Enchant creature

Enchanted creature gets +2/+2 and has flying and vigilance. (Attacking doesn't cause it to tap.)

Defender (This creature can't attack.)

Flying