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Come on, Barbarian, these are interesting abilities, and they don't really affect the balance, there are even some negative ones; you run around, collect ingredients, and then use them in battle, before or after. Don't jump to conclusions without reading, honestly.
I would only change "Battle Hardened" - it's too overpowered; and it's better to just remove "Apprentice" and instead add a skill - "Potion Making". And that's it.
Of course, it's up to the GM, I just couldn't pass by without commenting, it's an interesting idea.
Besides, there are three abilities listed as possibilities, not permanent abilities. There are only three left. One negative, one original, leaving two. Move Potion Making to a passive skill, and then it's best to remove Battle Hardened. And that's all.