Parasitic Impetus is a common Enchantment — Aura card from Commander Legends: Battle for Baldur's Gate (CLB), collector number 140. Current market price: $0.21 (foil $0.37), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature gets +2/+2 and is goaded. (It attacks each combat if able and attacks a player other than you if able.) Whenever enchanted creature attacks, its controller loses 2 life and you gain 2 life.
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