Batterskull is a mythic Artifact — Equipment card from Magic: The Gathering (Magic Online Promos, PRM).
Mythic
Magic Online Promos (PRM)
{5}
Mana Value
5
Card Text
Living weapon (When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this to it.)
Equipped creature gets +4/+4 and has vigilance and lifelink.
{3}: Return this Equipment to its owner's hand.
Equip {5}
