Your math may be correct on paper but it’s far off reality in practice.
You can’t stack 2x incinerations on a same target so that means you need to be hitting at least twice as many targets with 2x incineration overheats than with one possession to achieve that 378% dps. In reality, that’s not practical. Incineration has a smaller AoE and requires targets to be debuffed, whilst posession locks targets on ground and has a much more comfortable wide AoE. I’ve never managed to hit 14 mobs with a single incineration overheat, but with possession that’s not very difficult.
Effectively, I’d say you hit 4~8 targets per incineration overheat depending on what skill you are using to debuff. So realistically, 2x Incineration overheats hit about as many or slightly fewer targets than a possession overheat.
Also there’s the fact debuffing mobs and grouping them up properly before using the skill takes some time. Doing that with possession is much easier since it simply locks mobs on the ground as they enter the effect. Losing time grouping mobs means losing overall dps.
Incineration performs much better against single targets due to it’s innately longer duration, damage buffs through Black Death, Velnia Monkey cards, Conviction, and so on. However, Possession still surpasses it when used against a big quantity of mobs, simply because Possession is much more trivial to use and hits more mobs much easier.
I said the both skills are somewhat in same levels of power taking all these things into consideration, overheats, AoE, skill mechanics, etc. I didn’t simply state they have similar dps thus they are of same power.
The other sadhu skills are indeed a bit disappointing when compared to Possession, however, you are still comparing 3 different sadhu skills with one PD skill (black death). Calculating the total skill factor of Black Death over 15 seconds or the dps of it and compare with the other skills is purely misleading.
ABE still deals 2x hits of 334% to each mob if your body is close to your spirit aswell as the dot that deals about the damage of an extra hit over 5 seconds. That totals out on about ~1000% factor over these 5 seconds, without a maximum mob limit too. The most important thing about ABE, however, is it’s innately huge AoE. It’s a 360 degree circular AoE, as big as Chortasmata, which is much more reliable than Black Death’s stupid front-only narrow and rectangular AoE. If you played PD then you have at least missed Black Death’s completely a few times when mobs wiggle around.
The loss of an overheat and the fact Pandemic is now much smaller means you have very little margin of error with Black Death now. If you completely miss the steam or miscalculate Pandemics range/cd then you are already sitting at much lower dps than what ABE would achieve by simply hitting a button in the middle of a big mob.
ABE alone is enough to be on par, or even surpass black death in terms of raw damage, unless again, we’re considering you’re attacking a single target. But if you’re not convinced of that, we still have Varshitta, which deals ~900% factor on 40 sec cd, Prachitiry, which deals up to 700% factor on a small AoE as big as pre-rebuild deprotected zone, and of course, out of body auto attacks. All of those not considering Pranah’s buff.
Like I said before, this doesn’t prove Sadhu is a superior class, but it does prove PD is less offensively oriented than Sadhu.