Dual Cresents

Equipped creature is now red and blue
types in addition to what they currently are.
Flameborn — {r}{r}: Equipped creature gains +1/+0 this turn against non-red creatures.
Frostforged — {u}{u}: Equipped creature gains +1/+0 this turn against non-blue creatures.
Equip {2} ({2}: Attach to target creature you control. Equip as a Sorcery.)