Urgent Necropsy [Murders at Karlov Manor]

Description

As an additional cost to cast this spell, collect evidence X, where X is the total mana value of the permanents this spell targets.
Destroy up to one target artifact, up to one target creature, up to one target enchantment, and up to one target planeswalker.”The Golgari can read the dead like a newspaper.”—Taboro of the Foundway Associates