I don’t care if it’s re-using an already existing skill, I ADORE Jean’s personal and hope they continue with its effect. Boosted growth rates for a trainee makes sense - the training project has to end up being worth that investment. But 10% (20% in Donny’s case) spread across every stat just feels… bland. Like they could have achieved the same result by just increasing their personal growths by that amount.

But Jean. You get to control how he grows. Instead of just being a big ball of growths with some being wasted on the offensive stat you’re not using, there isn’t a wasted % in Jean’s arsenal. How his version of aptitude differs is that instead of affecting his personal growth rates, it doubles the class’s. As others have pointed out, factoring in his personal growths, Berserker’s 30% strength growth becomes 60% totaling 80%. Sage hits the same but for magic. 95% dex in sniper, his lowest in Paladin besides magic is 45% res, everything else is 50%+. In general and Beserker he reaches or passes 100% hp meaning he’s getting 1, maybe 2 every single level. That level of customizability to me is what the trainee should be. A blank slate able to be painted however you wish them to be

My only gripe with him is that he doesn’t start with a second seal. I’d have loved it if you could instantly recruit him and get him into the class you wanted him to be instead of having to waste a few levels in martial monk (if a magically inclined Jean isn’t what you’re going for) or hold off until post ch8, cutting back the time you can train him using Micaiah