Wave 25 boss, help (solo)

[Pineapple]

Hi I am struggling with wave 25 boss (solo mage)
Can anyone explain how to finish this wave more easily? I either get stunned and then die or I just run out of time.
I dunno the lich corvis mechanic so if can anyone explain I would appreciate
thxxx

[Nexior]

Proc staff first , armor 4s after . Try kill mobs as many u can. In last second double proc drop meteor ;)
Wave 31. Proc krak gun + kraken armor , drop meteor and finish by smuggler gun

Wave 35 same as 25wave

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