Drowned Battlefield
Land (Rare)

Drowned Battlefield enters the battlefield tapped unless you control two or more creatures.

U, Tap: Add RR to your mana pool.

R, Tap: Add UU to your mana pool.

1R: Drowned Battlefield becomes a 1/1 blue and red Merfolk creature with first strike until end of turn. It's still a land.

James Spencer