Edoras wrote:
But wouldn't working out at the gym also increase your constitution and thus your fort save?
So you really just didn't work out hard enough.
Not necessarily. That would be covered under cardio workouts. Dudes who lift weights tend to not do cardio, and just go for massive gains. Guys that get massive gains do not run marathons. Lifting weights would be STR training, and cardio workouts would be CON training.
It's like when Mike Tyson fought his bouts. He'd go in with a blitz of attacks, and try to finish it as quickly as possible with a KO. Boxers that could withstand the assault and press it into later rounds beat him because he'd used up all his energy.
Now just imagine you're Mike Tyson going to knock out some dude or chick and they use sorcery to rob you of the time you spent at the gym becoming absolute beefcake. That'd be a little irritating. There's really nothing in the hellion's repertoire that targets constitution, though.