Heroic Solis Mercedes - Dojo Floor 90!

This took soooooooooooooooooo many attempts (I started going for it during last event stats so probably 30+ runs total), it's UNREAL :(
thank you hexy for the encouragement c:
I tried so many different cooldown strats but I am still not entirely sure what's optimal... but after getting to around 20% left on floor 90 I knew that saving a few seconds literally ANYWHERE would give me the clear.
I did not record 1-50 but basically I use seren skill from 1-9, spirits from 21-32, seren from 33-39, RK+VS 46-49 and then I start the irkalla timer 50 onward
Like anything in life there's room for improvement, but f90 was a big big goal of mine and I am happy to have reached it :)