Soo I want a math wizard to do some calculations for me so I'm going to "make up a boss"

Autos hit for 10k - 15k
Divine smite hits for 25k per 3rd swing

Heavens crack
Deals 30-40k tank buster

Heavens Cleave
Deals 110 - 130k
This skill can be reduce via stacking

Heavens judgement
Hits 6x for 15-18k damage

Heavens volley
Raid wide for 26k - 28k damage




Now rules is

All tanks have 80k hp, all same equipment

Potency healing is not equal to cure 1 it's 1/4 of the cure 1 potency healing base value

(Let's say cure 1 base potency is heal is 10k)

so for tanks that's 2500 heal for a 400 potency

Have fun and now calculate which tank is better against my "imaginative" boss fight in endwalker with the potency "changes"