Paralyze is a common Enchantment — Aura card from Fifth Edition (5ED), collector number 185. Current market price: $0.21, TCGplayer market prices via Scryfall.
Enchant creature When this Aura enters, tap enchanted creature. Enchanted creature doesn't untap during its controller's untap step. At the beginning of the upkeep of enchanted creature's controller, that player may pay {4}. If the player does, untap the creature.