Blessing of Frost is a rare Snow Sorcery card from Kaldheim (KHM), collector number 362. Current market price: $0.20 (foil $0.33), TCGplayer market prices via Scryfall.
Distribute X +1/+1 counters among any number of creatures you control, where X is the amount of {S} spent to cast this spell. Then draw a card for each creature you control with power 4 or greater.