Blood Poet - No Symbol (CMB2) from Mystery Booster Playtest Cards 2021, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Marsha Rivera
• Card Text:
  Spark (Activate spark abilities by spending or giving yourself spark counters. Activate only one spark ability per turn, and only as a sorcery.)
  +1: CARDNAME gains lifelink until end of turn.
  -3: Target opponent discards a card. You gain life equal to its converted mana cost.