Idea: Perhaps move Malzahar passive to his ult.

I've played a lot of Malzahar before and after his rework. I've used him through his pre-rework and reworked aids-points. Now that he's finally received his nerfs, I feel as though his sole use in game is in the late game when he's picked up Rylai's and has a giant team surrounding him, ready to pounce on anyone he ults.

One purpose of his rework was for a passive that grants him brief immunity so he can engage with a double lockdown ult. Unfortunately, the passive usually gets popped really easily in early game skirmishes and is really weak unless he's against a melee assassin, imo. I feel that if his passive were to move to his ult, it would refocus the purpose of the rework after his nerfs and make his early game more enjoyable for this pesky Malz player.

TL;DR: the title. Thoughts?