Lamentation (ECC) from Lorwyn Eclipsed Commander, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Lars Grant-West
• Card Text:
  When this creature enters, destroy target creature an opponent controls. You gain 3 life.
  Encore 6BB (6BB, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)