Saltcrusted Skerry
Land (Rare)

Saltcrusted Skerry enters the battlefield tapped.

Tap: Add W to your mana pool. If you played a land this turn, Add U to your mana pool instead.

WU: Saltcrusted Skerry becomes a 2/1 white and blue Kor creature until end of turn. It's still a land.

Aleksi Nielsen