Embodiment of Agonies is a rare Creature — Demon card from Core Set 2020 Promos (PM20), collector number 98p. Current market price: $0.47 (foil $0.58), TCGplayer market prices via Scryfall.
Flying, deathtouch This creature enters with a +1/+1 counter on it for each different mana cost among nonland cards in your graveyard. (For example, {2}{B} and {1}{B}{B} are different mana costs.)