Deep Freeze is a common Enchantment — Aura card from Dominaria (DOM), collector number 50. Current market price: $0.21 (foil $0.27), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature has base power and toughness 0/4, has defender, loses all other abilities, and is a blue Wall in addition to its other colors and types.