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

• Rarity: Uncommon
• Finish: Normal
• Artist: Mark Poole
• Card Text:
  All damage done to you so far this turn is instead retroactively applied to one of your creatures in play. If this damage kills the creature it can be regenerated; even if there’s more than enough damage to kill the creature, you don’t suffer any of it. Further damage this turn is treated normally.