i'm pretty sure poison damage doesn't depend at all on ninjutsu, it's just a flat out 1999 damage per point of stack (so with 4 times you land 7996 damage per round) that gets reduced accordingly to the target's resistance (so the higher the enemy resistance the lower the damage the enemy suffer and that's all that matters for it).
About testing on rich field cat or kakashi clones you just get that 1999 repeated because they have 0 resistance (the picture show the max damage landed by poison by being stacked 4 times).
What i would really wish to know, and that's interesting, is how ninjutsu *ion works on it, because, if really depends only on resistance, then, maybe, that's the only personal stat you can add to a ninja that actually increases that specific damage (in the sense that, by ignoring a part of enemy resistance, actually let him inflict a damage closer to the 1999 cap per point stacked), even if, what i think is that 'poison' isn't considered at all a ninjutsu effect delivered by a specific ninja but simply a debuff added to a target as a secondary effect, so, very likely, not even ninjutsu *ion works on it. This post was last edited by 988***@uf16 at 2017-5-6 20:05