Cranial Plating (5DN) from Fifth Dawn, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Adam Rex
• Card Text:
  Equipped creature gets +1/+0 for each artifact you control.
  BB: Attach Cranial Plating to target creature you control.
  Equip 1 (1: Attach to target creature you control. Equip only as a sorcery.)