Slagheap Basilica
Land (Rare)

Slagheap Basilica enters the battlefield tapped unless you reveal a nonbasic land card from your hand.

R, Tap: Add WW to your mana pool.

W, Tap: Add RR to your mana pool.

2: Slagheap Basilica becomes a 2/2 red Beast creature until end of turn. It's still a land.

Steve Walker