Dorkfellow

I realize that I need a script of sorts, but what I meant was dose any one know of an engine that I can use. I can't seem to actually find any. The increasing stacks of passive stats is optional, but preferred.

Dose any know how to make a passive skill for RPGMaker VX Ace? I want to be able to have my character learn traits that that increase damage of a certain skill, or perhaps change how they work, or be able to increase their base stats by a set amount. For example, you could choose [Water Pressure (increase water damage by 10%)] or [Resolve (increase health by 5%)] when the character hits a certain level. Also, would it be possible to have these passive abilities be upgrade able? Like increasing Water Pressure a bit for each additional upgrade (Ex. 10%, 12%, 14%)?