Creature — Elemental Warrior Shaman 1/1, 1{B/R} (2)
Common
Whenever you cast a black spell, Emberstrike Duo gets +1/+1 until end of turn.
Whenever you cast a red spell, Emberstrike Duo gains first strike until end of turn.
Illus. Aleksi Briclot

5/1/2008: An object that's both of the listed colors will cause both abilities to trigger. You can put them on the stack in either order.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern