Mystic Heights
Land-Plains Island (Rare)

(Tap: Add W or U to your mana pool.)

Mystic Heights enters the battlefield tapped unless you control four or more nonbasic lands.

1, Tap: Target land becomes a 2/2 blue Fish creature until end of turn. It's still a land.

W, Tap: Target blocking creature gets +0/+1 until end of turn.

Lars Tedin