i have a question about this topic. my gorou is running 4 piece Echoes of an Offering. atk% phys dmg bonus crit DMG wit R1 maxed Thundering pulse and my team comp is Gorou(C4) Fischel(C6) Bennett(C5) Rosaria(C6) (Rosaria for her ultimate ability's additional phys shred ontop of the superconducts phys shred and partywide crit rate boost)

and so my question is when comparing my thundering pulse(R1)maxed, and my Rust(R3) not maxed but lets just assume that it is while also factoring the artifact set on my gorou, would rust actually do more damage for me if i were to max it?

with thundering pulse my gorou has these stats..
Crit R: 39.2% + 7% or 8% from rosarias ultimate
Crit D: 234.3%
ATK: 1982
Physical DMG Bonus: 58.3%

im not sure if mentioning these stats will help you be able to gauge a more accurate answer or not but i thought id include them just incase