Paralyze [Revised Edition] Eldrazi Spawn where X is the number

where X is the number of creatures that convoked Knight-Errant of Eos

where X is Agatha of the Vile Cauldron's power

target creature gets +2/+0 and gains trample until end of turn

but if you're really curious about the distant past

Paralyze [Revised Edition] Eldrazi Spawn where X is the numberSet: Revised Edition Type: Enchantment Aura Rarity: Common Cost: {B} Enchant creature When Paralyze enters the battlefield, 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.