Fervent Paincaster is a uncommon Creature — Human Wizard card from Hour of Devastation (HOU), collector number 91. Current market price: $0.05 (foil $0.32), TCGplayer market prices via Scryfall.
{T}: This creature deals 1 damage to target player or planeswalker. {T}, Exert this creature: It deals 1 damage to target creature. (An exerted creature won't untap during your next untap step.)