
Zathyr |
It was just called "Nimble" as I recall, and it also dropped armor check penalty by 2, so it wasn't too bad. I had a 3.5 roguish Warlock in Nimble armor - not full plate though. It was that elvish relic armor. Anyway..
Oh I have hope I could find some way for my PC to be running around and casting spells and jumping around in a suit of full plate armor
Well you could. If you're a divine caster then the arcane spell failure chance doesn't apply to you, or as an arcane caster you could limit yourself to spells without somatic components, or take an archetype that lets you cast without penalty in full plate (like the Chelish Diva).
As for running around and jumping, that's just acrobatics skill. The armor check penalty would apply, and your speed would be reduced by full plate, but you can compensate with high skill and magic items like the Boots of Striding and Springing.
Your max dex from armor isn't a factor in any of that. That only determines how much of your dex bonus counts towards your AC.