Cascade Underground
Land-Island Swamp (Rare)

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

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

U, Tap, Sacrifice Cascade Underground: Return target creature you control to its owner's hand.

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

Aleksi Chan