Armix, Filigree Thrasher
From The Brothers' War Commander set
Armix, Filigree Thrasher
Legendary Artifact Creature — Golem
3/2
Whenever Armix attacks, you may discard a card. When you do, target creature defending player controls gets -X/-X until end of turn, where X is the number of artifacts you control plus the number of artifact cards in your graveyard.
Partner (You can have two commanders if both have partner.)