Death's Oath theory craft

So league is winding down and i've been spending my POE time trying to learn myself a little about coming up with builds. Maybe one day I can follow my own path, but for now I'm just sort of meme-ing and practicing. If you pick a meta skill the wealth of knowledge makes it pretty trivial to sort out and harder to learn from. So i went with something quite a bit off meta but that I've enjoyed in the past.

Templar Guardian Death's Oath: POB: https://pastebin.com/XVnHVhrN

So basically I've always been envious of the aura stackers, never had enough currency to implement. I also would happily never click a button if I could do that. So I wanted to see if i could theory craft something that would be able to be fine and also clear most content in theory. I'm not saying this can do that, I'm just saying this is where I got stuck.

So we've got Grace, Haste, Determination, Malevolence, Purity of Elements, Defiance Banner, Vitality, Clarity, Discipline.

Blasphemy + Temp chains/Despair

Withering Step + Lifetap

6x Mana Res smalls and some mana res clusters leaves me with 1 mana, and 18% unreserved life. So obviously i gotta scale energy shield. Which i've tried to do to the best of my ability. Lots of evasion/armor, some ward from flasks, thinking about switching some gear to ward based.

Thoughts:
I probably don't need clarity. And thats really all i got. Not sure what to juggle. I tried to roll my gear low so that it wasn't some crazy stupid build. SO yeah i could probably boost it just with some more t2/t1 rolls. but I was trying to avoid that.

Anyway, yeah, rip it apart if you must. Its my first try.