Battered Shield

Equipped creature gets +0/+2.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)
Repurpose {2} ({2}, Sacrifice this equipment: Put two +1/+1 counters on target creature you control.)
"There's life in that antique yet. Let me take a look at it and make something worth your time."
-Walter, Master Smith