Eternal Echo 2014
3rd-level necromancy
You gain a portentous voice of compelling power, commanding all undead within 60 feet that fail a Wisdom saving throw. This overrides any prior loyalty to spellcasters such as necromancers or evil priests, and it can nullify the effect of a Turn Undead result from a cleric.
Source: Warlock Zine (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details