Tharizdun - The Chained God

Therizdun is more than an archevil god of insanity; he is an idea, an evil so unthinkable it had to be locked away. His corrupting presence makes people go crazy, he exists in the mind and seeks to sow chaos. It is said he has the power to manipulate time and exists across all time.
After defeating the Queen of Plagues in Silverymoon, Rowan found this entity, who introduced himself as Chuck, trapped in a diamond of shifting colors in the Rivety Estate. He claimed to be a former trickster god and that he knew Polemos. When searching for a ruin in the Frozen Expanse, he appeared as a silver dragon and attacked us when Rowan refused to hand over the gem he was trapped in. After leaving with Rowan’s corpse and the gem, we solved the rubix cube in the center of the room which ended up being one of his tricky traps. Upon solving his tomb of horrors he sent us forward 100 years into the future, giving us a first-hand account of the world after an apocalypse we failed to stop.
We next encountered him in the Black Citadel at Mount Malice after temporarily defeating Polemos and felling Kataktisi (who we did not get the identity of at the time). Trapped in another stone though this time able to communicate regardless of the stone coming in contact with anyone, he tried to convince us to attempt to free him. Luciana and Alethra decided instead to cast the stone into the River Styx.