Talk:H Episode 47: Where the Cards Went! Shido`s Death Symphony of Rage!/@comment-25600444-20160304233855/@comment-34633327-20160305004608

They stated that Yamigedo can't be sealed anymore due to his increased strength. They made Mukuro an Omni Lord so that the 9 together could KILL Yamigedo. Cord may be an Arse, but he is ultimately gonna work with them so he can have a home to go to, otherwise he would need to give his emblem to another monster, and we don't have the time for that!

Mukuro's entire plot from the start was meant to end with him learning what is the true meaning of being a hero, with him only becoming an Omni Lord after abandoning his selfish reasons. It was most likely planned from the beginning for Mukuro to become an Omni Lord. Also helps that when Paruko announced the search for the Omni Lords, the only one who wasn't the buddy of or an omni lord in the original 8 was Mukuro. Kazane gets a pass for being Dawn's eventual Buddy. Even his observing Yamigedo coming to Earth screamed "I'm gonna join the battle and become a real omni lord!"