Serra's Liturgy

Enchantment, 2WW (4)
At the beginning of your upkeep, you may put a verse counter on Serra's Liturgy.

{W}, Sacrifice Serra's Liturgy: Destroy up to X target artifacts and/or enchantments, where X is the number of verse counters on Serra's Liturgy.¹
Illus. rk post

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: Adding a counter is optional. If you forget to add one during your upkeep, you cannot back up and add one later.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard, MTGO Classic
Printings (1/6)	Urza's Saga (Rare)