"Wrathian State" Aless Draft 1 (Patreon)

It's a headcanon that imps inherently have this form and can produce their own hellflame.

(See Helluva boss S1 episode 2 | 12:09)

But modern times made them less connected to their Wrathian state. Some imps in Wrath can produce a good amount and breath hellflame or produce it as a form of "dick measuring" contest.

After Aless discovered he lost everything via Tontune's mockery, this form was finally released from being deeply connected to his Wrath. Almost covering his body in flames and becomes the most unhinged and angry with a laugh.

These hellflames only harm Angels and weakens holy weapons and burn sinners. To other Hellbornes the flames are completely harmless. Seems fair since Exorcists are physically invulnerable.