Deflecting Palm is a rare Instant card from Secrets of Strixhaven Mystical Archive (SOA), collector number 63. Current market price: $2.68 (foil $4.42), TCGplayer market prices via Scryfall.
The next time a source of your choice would deal damage to you this turn, prevent that damage. If damage is prevented this way, Deflecting Palm deals that much damage to that source's controller.