Strider Harness (RIX) from Rivals of Ixalan, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Kev Walker
• Card Text:
  Equipped creature gets +1/+1 and has haste.
  Equip 1 (1: Attach to target creature you control. Equip only as a sorcery.)