Then you just buff/heal(you only need 3 Growths to cap within the Solar, and also a tera drain will completely heal you) as desired and bit by bit nuke it down. It was trivial once the rain is long gone and you will tera to manage the massive shield. Evokers: https://howtodefeattheraid73836.dm-blog.com/18127974/what-does-how-to-defeat-the-raid-mean