[Shujin]

I sorta feel like the buff itself is weird since GR, getting this much strength isn´t that useful anymore thanks to diminishing returns. Sure you can just build less strength and bite yourself to even it out but...The momentum loss is not worth it. I haven´t seen a WT actively biting themself anymore cause it´s not really useful overall.

Maybe extend the poison duration on the WT so you don´t have to rebite yourself every other turn? I mean poisons flows through their veins..Makes sense that it fades slower? The problem here is of course, that it still damages them on low San so if done wrong it might even be another debuff.
But I guess we could work around it with just giving them another buff each time they are inflicted with poison which is actually prolonged with San and does the stat boost.

WT´s are mostly only used nowadys for poison resists and their good offensive base stats and sometimes for the poison absorb....Which has huge flaws aswell.