Rakdos Keyrune
- Color: Colorless
- Type: Artifact
- Rarity: Uncommon
- Set: Return to Ravnica
[t]: Add [b] or [r] to your mana pool.
[b][r]: Until end of turn, Rakdos Keyrune becomes a 3/1 black and red Devil artifact creature with first strike.
The Rakdos use it for everything you can think of and plenty more than that.