Popular Egotist is a uncommon Creature — Human Rogue card from Duskmourn: House of Horror (DSK), collector number 114. Current market price: $0.22 (foil $0.26), TCGplayer market prices via Scryfall.
{1}{B}, Sacrifice another creature or enchantment: This creature gains indestructible until end of turn. Tap it. (Damage and effects that say "destroy" don't destroy it.) Whenever you sacrifice a permanent, target opponent loses 1 life and you gain 1 life.