I know that Magplars typically have DW on front bar and inferno on back bar, but on my Magplar doing this just chews up my magicka. I have to essentially make sure to only use witchmother's (the max magicka and magicka recovery one), slot ele drain, and use channeled focus while pumping myself with potions. My question isn't necessarily how to sustain but rather if DW on front and fire on back is much better than having inferno on front and resto on back. I plan on having bsw on front and moondancer on back with grothdarr so I feel like this setup can keep me topped off enough so that I don't have to slot ele drain.