Karam

Karam was born in a land of nightmare. He found a way to transcend the realm of dreams to wreak havoc on the living. Joining the faction of the Undead he now seeks to destroy the world of the living.

Karam is a Force affinity epic from the Undead Hordes. Karam was buffed in January 2021 to not use his poison explosion ability against the Clan Boss on auto. He was then buffed again in patch 6.0 in September 2022 to do more damage with his A2, was it enough?
With a reasonable chance to land poison on his A1 he becomes a mid-tier prisoner however without any other true utility he will not go beyond that.
He is the wrong affinity for Ice Golem 20, and you should have a better poisoner for Clan boss you can bring into Dragon 20.
The strongest skill for Karam is his A3, potentially a boss slayer in areas such as Doom Tower but he needs to be paired with champions that lay a lot of poison, like Taurus or Dracomorph. Unfortunately his main skill has a damage cap on higher levels of dungeons and in Doom Tower or Twins making him a niche pick at best.