Battle standard of infernal power

A battle standard of infernal power was a rare magical battle standard used in the Nine Hells.

Description
A battle standard of infernal power was a large battle standard made from iron that was forged in the Nine Hells. At the top of the battle standard was a small cage that could not be opened. Within the cage was a quasit. If the quasit was killed, it vanished and a new one appeared within the cage.

Powers
The cage that held the quasit was invulnerable to nearly all damage. The bearer of this unique battle standard gained the ability to overpower other creatures' immunities or resistances, both innate and magical. The banner provided this ability to all creatures within who were allied with the bearer.

Appearances

 * Adventures
 * Baldur's Gate: Descent into Avernus