Hero's Blade (FIC) from Final Fantasy Commander, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Russell Dongjun Lu
• Card Text:
  Equipped creature gets +3/+2.
  Whenever a legendary creature you control enters, you may attach this Equipment to it.
  Equip 4 (4: Attach to target creature you control. Equip only as a sorcery.)