Summon Gargoyle

Summon Gargoyle is an Unholy death knight talent that summons an Ebon Gargoyle. The gargoyle repeatedly attacks the death knight's target with Gargoyle Strike, a spell that deals Plague damage.

This spell can be replaced with Dark Arbiter by speaking to Lady Alistra in Acherus: The Ebon Hold. Dark Arbiter instead summons a Val'kyr Battlemaiden who uses Val'kyr Strike, dealing damage. The spell can be changed back by speaking to Alistra again.