Effect that gives resistance for a set number of attacks before wearing off?

[Greywolf411]

In my campaign I have a concoction that has been that allows the user to gain resistance to bludgeoning, piercing, slashing for a short amount of time. I am trying to figure out a way to implement it so that after a certain amount of hits/uses it goes away.

Any thoughts/ideas on how to implement this effect?

Thanks in advance

[Zacchaeus]

There is no automatic way for FG to work out how many hits something takes. You could add a number of uses in preparation mode and have the player tick off each use as and when needed.

[Griogre]

It would be much easier to set it to last for number of rounds instead of hits, though that would increase the power.

[Greywolf411]

Yep, I can see how to do it with setting rounds of effect I was just hoping the bigger brains out there would perhaps know of a way to make it happen out of the attacks that hit. The preparation model sounds like the best workaround though, thanks Zacchaeus