Nihil Spellbomb is a common Artifact card from Masters 25 (A25), collector number 226. Current market price: $2.61 (foil $8.29), TCGplayer market prices via Scryfall.
{T}, Sacrifice this artifact: Exile target player's graveyard. When this artifact is put into a graveyard from the battlefield, you may pay {B}. If you do, draw a card.