Frogify is a common Enchantment — Aura card from Double Masters (2XM), collector number 52. Current market price: $0.25 (foil $0.41), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature loses all abilities and is a blue Frog creature with base power and toughness 1/1. (It loses all other card types and creature types.)