Mirran Bardiche is a common Artifact — Equipment card from Foundations Jumpstart (J25), collector number 227. Current market price: $0.27, TCGplayer market prices via Scryfall.
For Mirrodin! (When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.) Equipped creature gets +2/+1 and has vigilance. Equip {3}{W} ({3}{W}: Attach to target creature you control. Equip only as a sorcery.)