Rift Bolt is a common Sorcery card from Duel Decks: Mind vs. Might (DDS), collector number 17. Current market price: $0.22, TCGplayer market prices via Scryfall.
Rift Bolt deals 3 damage to any target. Suspend 1—{R} (Rather than cast this card from your hand, you may pay {R} and exile it with a time counter on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)