Vile Requiem - Urza's Saga - 167

Enchantment

Mana Cost: {2}{B}{B}

At the beginning of your upkeep, you may put a verse counter on this enchantment.
{1}{B}, Sacrifice this enchantment: Destroy up to X target nonblack creatures, where X is the number of verse counters on this enchantment. They can't be regenerated.

Uncommon · Urza's Saga · #167 (USG)

Illustrated by Carl Critchlow