Panicked Bystander // Cackling Culprit (VOW) from Innistrad: Crimson Vow, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Aaron Miller
• Card Text:
  Whenever Panicked Bystander or another creature you control dies, you gain 1 life.
  At the beginning of your end step, if you gained 3 or more life this turn, transform Panicked Bystander.
  //
  Cackling Culprit
  Whenever Cackling Culprit or another creature you control dies, you gain 1 life.
  1B: Cackling Culprit gains deathtouch until end of turn.