Backbar: Berserker enchant... this enchant has the longest duration and is the most effective considering that this bar is not as frequently visited as the frontbar.
Front bar: 4 Options:
Prismatic Glyph: If the enemies are daedra this glyph outperforms every other glyph.
Shock glyph: this glyph has a chance to proc Concussion which makes the enemy take 8% more damage, however once you have a decent uptime on this debuff is becomes redundant, so it is better to use the:
Flame Glyph: has a chance to proc burning which is basically a dot and deals damage it self.
there is one other option it is the absorb magicka glyph combined with blue food instead of the flame glyph with cwc-filet/ witchmother's. you have more damage with slightly less sustain, considering you already have a decent uptime on burning without the flame glyph and you don't need additional flame damage sources to proc sets like burning spellweave.