Nettling Imp (LEB) from Limited Edition Beta, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Quinton Hoover
• Card Text:
  Tap to force a particular one of opponent’s non-wall creatures to attack. If target creature cannot attack, it is destroyed at end of turn. This tap should be played during opponent’s turn, before the attack. May not be used on creatures summoned this turn.