Atomic Microsizer (EOE) from Edge of Eternities, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Gabor Szikszai
• Card Text:
  Equipped creature gets +1/+0.
  Whenever equipped creature attacks, choose up to one target creature. That creature can't be blocked this turn and has base power and toughness 1/1 until end of turn.
  Equip 2