Grave Endeavor is a rare Instant card from Forgotten Realms Commander (AFC), collector number 24. Current market price: $1.79, TCGplayer market prices via Scryfall.
Roll two d10 and choose one result. Return a creature card from your graveyard to the battlefield with a number of +1/+1 counters on it equal to that result. Then each opponent loses X life and you gain X life, where X is the other result.