Need help to set up a feat (Robilar's Gambit)
Okay, here's the thing. Robilar's gambit is a feat that allows you to do things, but in exchange anyone attacking you has a +4 bonus to hit and damage. I easly can set up the bonus to hit (just applying an effect of "AC: -4), but I really don't know if there's a way to set up a "take more damage" that isn't "VULN".
So far I used a straight approach in setting an effect "Robilar" when one activates the feat, and setting a "IFT: CUSTOM (Robilar); ATK: 4; DMG: 4" on everyone else but it gets VEYR annoying when you run encounters with more than 2-3 creatures.
Recently I tried swapping with the Aura system (I set the above effect in an aura 100 ft. across, since encounters rarely happen to be fought on larger distances than that, that applies on pretty much everyone), but it kinda slows down FG and doesn't always count as "on" when it's needed.
So, is there a way to script that "if I get damaged, add 4 to incoming damage rolls" I'm missing?