Seraph, Stage 4 (Aura of Holy Purge)

• Aura of Holy Purge. You emit an aura of righteous fervor. This aura radiates up to 20 feet from you while you are conscious. When you or an ally within range of your aura hits a hostile creature, they can choose for that hit to be a critical hit instead. Once a creature has benefited from this feature, they cannot benefit from it again until they have completed a long rest.

Flaw.

• Pull of the Empyrean. Your new native plane attempts to draw you to it, laying claim to your form. Whenever you roll a natural 1 for a saving throw against a magical spell or ability, you take 1d6 force damage per 2 class levels in addition to any other damage or effects you would suffer, as your native plane attempts to unbind you from the material plane. For example, a 6th level Fighter would take 3d6 force damage. This damage ignores resistances and immunities.