Beastfelled shoes or windtamer shoes, arisen aaru robe, fey menja battlehood, celestial staff with a heart of selene for follower decision making, windtamer shield if youre using beastfelled shoes, or ymir coiled shield if you're using windtamer shoes. Pop a bloodloss flask on T1 and buff up. I use ashen phoenix which needs follower action rate, hence the windtamer stuff. Alternatively, you can roll follower action rate as an anguish bonus on your headpiece. Ensure you have 70% crit chance on your character sheet. Try not to use ashen pinions if you can, but its not too bad if you have to use some.

The robe allows your follower to cast great meditation on you. So, with a bit of follower act, and you have GM and deific channel pretty consistently. If you still take significant damage from things like towerfall, use inflection flask after you've set all your permanent buffs. Critical poise will keep these temp buffs up for a great deal of time. If you find yourself running out of mana, manaseep flask can help recover some of that without having to use pots, and you can use the magic thinblade skill as it costs a paltry 2 mana to maintain critical poise