1. At the end of the series all their attacks rip star seeds automatically.
2. He pulls out the essence and either destroys it, recreates Dark Genie in his image, or just use his powers. Dark Genie doesn't have resistance to essence manipulation, once, Chaos rips his essence, all of Dark Genie's apsects, mind, body, soul, spirit, will be instantly destroyed and Chaos has complete control of Dark Genie's existence at the most purest form.
3. Dark Genie has no resistence to fate manipulation, nor is accausal. Absorbing the flow of all time doesn't stop you from getting your fate manipulated. Chaos was warping and destroying spacetime across the timeline, and can move to the end of the spacetime at will. He can send attacks backwards through time, and corrupted and aborbed the thing that created the guy who created time.
5. Chaos also assimilates with just a touch. Chaos has essence manipulation. He also has passive existence erasure with just a touch. He corrupted and possessed a 5-D structure that erases things passives with a touch. He absorbs everything that touches him and assimilates them in himself. I don't buy Chaos getting possessed. And if he does, it's not going to be instaneous, there will be a struggle. All Chaos needs is to simply think once, and Dark Genie, is power nulled, mind haxed, and erased and these AOE effects remain constant and can deal with any of the upcoming avatars.
Dark Genie has two things going for him: Possession and his avatars.
Chaos has several things going for him: essence manipulation, assimilation, possession, absorbtion, corruption, existence erasure, fate manipulation, mind hax, power negation, power steal, and can recreate Dark Genie to fight for him, and do the same with any avatars.
I'll let other people decide what takes it.