Yamato

Equipped creature gets +3/+1 and has vigilance. Equipped creature has "{u}{1}: This creature gains first strike until end of turn.", "{u}{u}{3}: This creature gains double strike, trample, and indestructible until end of turn.", "{2}: This creature gains +1/+1 until end of turn", and "{u}{3}{x}, {t}: {ut}: Destroy X amount of creatures your opponents control. Put a +1/+1 counter on this creature. Exile this artifact."
If this artifact is exiled for the second time, bury it.
Equip {u}{4}