Death Ward or other similar effects no longer protect against the ability drain of using this.

This feat has been changed due to playable races that are immune to CON drain: each time this ability hits an enemy creature, the hellfire warlock takes 0.5 HP damage per character level (instead of constitution damage).

Needed:Does the Hellfire Shield Reflex Save work in reverse or has this been fixed? Is full damage still delivered on a successful save and half damage on a failed one?