Reading the magic rules, I noticed the Curse action wasn't available to Primal skill.

This seems counter-intuitive to me, for one reason.

Voodoo.

How primal can you get? Or is Voodoo just a scary Divine skin?

Voodoo is a religion in my mind, with necromantic aspects. I'd actually put Primal last and Arcana and Divine before it for Voodoo.

Voodoo isn't Primal in my experience. It's more related to Arcana or Divine.

So... I agree with 2P51.

Voodoo-as-divine makes sense, I guess I get hung up on how "primal" some Voodoo rites seem!

Thanks for the replies!

Probably thinking like a tribal shaman thing for Primal, that's talking to nature spirits in my mind.

Yep, some communities can live in a "tribal way of life" but have a faith in some pantheon or something like this, making possible to use Divine magic in these situations.

"Voodoo" would probably be Arcana, as it's basically a Hollywood version of a real-world religion called Vodou. The religion as practiced in Haiti (and by Haitians worldwide) is much more akin to Divine magic in that you are placating and appealing to divine spirits and divinities for aid. In an anthropological or sociological sense, the distinction between Primal and Divine magic is a judgement call, of course. Calling what a shaman does "primal" and what a priest does "divine" doesn't really accord with real-world practices in a lot of instances.

In my custom setting i replaced Arcana with Voodoo, and it's worked out well so far. I also made magic implements limited by your chosen magic skill. This also helps give each skill more flavor.

I have to agree that voodoo and shamanistic magic falls under divine, though it may have some primal elements. But I also see the inability for Primal to use Curse as a problem. Think about a more specific example: Morrigan from Dragon Age. She and her mother Flemeth claimed not to believe in any gods, did not study in some mage’s school, and drew their power from magic naturally (Primal). A lot of Morrigan’s magic is focused on hexing (cursing). I could imagine plenty of other examples where using the power of nature’s darker elements (darkness, disease/sickness/pestilence, etc.) to debuff makes a lot of sense. I assume there’s a way around this by using one of the other magic actions to create the same effect...

It goes without saying that the other side of this coin is that Augment, the mirror of Curse *is* available to Primal users...but not Arcana. Why wouldn’t a studied mage be able to create spells to buff (Augment), but they can Curse? I feel like if it makes sense in your setting, change these rules up a bit.