I would change some IM skills:
Give blade Circle mod a large range for his attack.
Having two blade spawns in infinite chaser (Like 1 from behind my char and other one on the end of the sword blast, like hitting from front and behind) or just having them falling from above and hitting in the same range as the original.
Give Rage cutter mod a bigger hit box.
Having two phantom swords with 50% less dmg each than the original but twice the hits.
Using Final strike in mid air too. uwu
And for a final... A new costume for elbois based on the fate series! (Just imagine IM with this costume).