After testing this monster in last pvp and doing alot of tests on it against Ai the conclusion its a C tier monster at best and this is how i will improve it if i was the devs. @Dev_VKC
The main problem of this monster is its sweeping skills are awkward and the shapehift skill sends back the user to the end of reinforcement making it almost impossible to use again.
The solution for this problem is a simple tweak to the mechanics, instead of sending the user back to the end of reinforcement it sacrifice the user and revive it at the end of reinforcement with full hp if its complete shapeshift and second form shapeshift at 50% hp
This allows you to use shapeshift more than once as the reinforcement condition is no longer their and refreshes your Secret skill. This is important as i will discuss the potential change for Secret skill
The secret skill could be changed to insta purifying mist all. What does this do is allow her to purify removing poison and setup up the stealth for double sweeping. This will allow her to be less awkward when sweeping and give her a chance against poison end game.
Finally i would discuss changing random repulse to normal repulse as she would be able to reset it with the new shapshift.
Simple tweaks while keeping the monster almost identical to the released version