MAIN ACT 9.4 BOSS OR FUTURE ACT IDEA
Make Oroborus the main boss give him a crazy health pool make it a long lasting fight that has phases consisting of all the champs he corrupted lile he summons their aspects in to fight for him phase 1, Cytalis, phase 2 Bohamet, phase 3 cerustes, phase 4 glykhan, and you get the idea.
Idea 2 make it so after each of his specials he summons a random aspect and you got to remove charges or fight lile you'd fight those bosses each time you remove his aspect charges he gets weaker or angry.
Make his final phase him alone and I know they would never do this but make it a special quest where you give the summoner the opertunity ti fight with carina she adapts in the fight to fit the phase and make it a new fun and enjoyable fight