hi,
This is not a plugin available online, it's a plugin that I made myself.
The plugin allows you to declare weapon power and armor quality values independent of the basic stats.
these tags allow use in formulas.
simplistic example: damage = ( a.atk / 8 + a.weaponpower() ) - (b.def/16 + b.physicalArmor)
it's a simple plugin (with my level in javascript, I didn't make it too complicated :P)
do you think I can send it to you by discord (name : Alasthorn) or RPG Maker forum (name : Alasth)