metal-warp spear

equip {1} (Attach this permanent to target
creature you control. Activate this ability only
any time you could cast a sorcery).
equipped creature gets +1/+0 and first strike.
if this card is not attached to a creature during a
players upkeep put a 0/1 colorless artifact
creature token onto the battlefield and equip this
card onto that creature for {0}. then destroy any
other tokens this card has put into play.