Cinder Conclave
Land-Island Mountain (Rare)

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

When Cinder Conclave enters the battlefield, return a land you control to its owner's hand.

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

2, Tap: Target land becomes a 3/3 blue Cephalid creature until end of turn. It's still a land.

Greg Schuler