Amumu Should Have Morgana's Ult

To explain, Sejuani had her ult reduced to only being able to stun a single target and had delayed damage but because her ult took up less of her power budget, she was able to gain stronger abilities and is one of the strongest junglers atm. With Morgana's small rework coming within the next year or so, I hope they give her a new ultimate (which she kinda needs imo) and give her current ultimate to Amumu. His "new" ult would be a similar range to his current one (only a little bigger) but it requires Amumu to stay in the fight longer and gives the enemy team time to react. With less reliable cc, his ultimate isn't as costly as it is now which allows power to be shifted into other abilities. Maybe, once and for all getting changes to his painfully bland w and basic passive.