Shelldock Caldera
Land-Island Mountain (Rare)

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

Shelldock Caldera enters the battlefield tapped unless you sacrifice a Wizard.

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

RR, Tap: Target red creature gets +1/+1 until end of turn.

Ron Sweet