His loop is very confusing. There are different ways in which u can increase his attack rating. I have given snippets from his kit below.
Through rejuvenate from sp1

Through unstoppable from primal rage

I understand that his physical bursts when opponent uses special attack scales with only base attack so it doesn’t benefit from these attack increases.
But his special 2 should benefit from the attack increase right? (that is why his play style is supposed to be dodge and launch sp2). Here is the wording from his kit.

From my understanding, the meter notes a maximum of 119060 damage from physical bursts and does 125% of that damage at the final hit of sp2 (incorporating the attack increases, i.e if his attack rating is doubled it should double as well).
Now from my observation it is not scaling with either of the attack increases. Below are the screenshots.
Neither rejuvenate nor unstoppable

Both rejuvenate and unstoppable

Only unstoppable

Is this how it is supposed to be? I can’t understand why none of his bursts scale with attack increases, kinda takes away his core loop of launching sps while being unstoppable. If anyone has a better insight on it please help me out.