Serra's Liturgy USG/49

Set: Urza's Saga
Collector Code: USG/49
Name: Serra's Liturgy
Type: Enchantment
Oracle text: At the beginning of your upkeep, you may put a verse counter on this enchantment. {W}, Sacrifice this enchantment: Destroy up to X target artifacts and/or enchantments, where X is the number of verse counters on this enchantment.
Rarity: Rare