
Target creature gets +2/+2 until end of turn.
Metalcraft — That creature gets +4/+4 until end of turn instead if you control three or more artifacts.
Mirran Mettle has 1 printing, first in Mirrodin Besieged (2011). EDHREC ranks it #28,545 among Commander cards.
Cards that show up in the same decks on EDHREC.