wow so much damage after doing her skill combo constantly after... 30 waves.
The time it takes to reach such damage output is way to high, if she could do that really quickly, then she would need a nerf.
As for the the damage reduction other frames have the exact same skill like mesa, or similar stuff that let you mitigate a lot of damage like mirage's hall of mirrors, or rhino iron skin.
A frame without some sort of survivability is useless. (being able to share that 90% reduction with other players is another story tho)
Also she need to be constantly aware of her energy and timers or else all the work done towards the damage scaling goes down the drain.
DE said they will definetly nerf ''use and forget'' kind of skill, like old Ember or prenerf - revenant, and gara doesn't have that kind of skill.