Refraction Trap is a uncommon Instant — Trap card from Worldwake (WWK), collector number 17. Current market price: $0.06 (foil $0.35), TCGplayer market prices via Scryfall.
If an opponent cast a red instant or sorcery spell this turn, you may pay {W} rather than pay this spell's mana cost. Prevent the next 3 damage that a source of your choice would deal to you and/or permanents you control this turn. If damage is prevented this way, Refraction Trap deals that much damage to any target.