Blood Mist Wolf

Bestow {3}{u}{r} (If you cast this card for it's bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Enchanted creature gets +2/+2
If enchanted creature is red, it gains blue.
If enchanted creature is blue, it gains red.
If enchanted creature is neither, it gains both