Grendel's Mother

Symbiosis {2}{w}{u}{b}{r}{g} ({2}{w}{u}{b}{r}{g}: This card becomes an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Flying, first strike, vigilance, trample, lifelink

Enchanted creature gets +4/+4 and has flying, first strike, vigilance, trample, and lifelink.