Veiled Apparition - Urza's Saga - 107

Enchantment

Mana Cost: {1}{U}

When an opponent casts a spell, if this permanent is an enchantment, it becomes a 3/3 Illusion creature with flying and "At the beginning of your upkeep, sacrifice this creature unless you pay {1}{U}."

Uncommon · Urza's Saga · #107 (USG)

Illustrated by Andrew Robinson