Which part of the system can barbarians not interact with?

> NMUs and low-skill MUs will need to buy an Imbue rod, adjust it to the mana they want (crafted ones are capable of higher mana amounts) and wave it at the item undergoing enchantment to imbue it.

I think there could be an argument that abilities could replace certain tools to add a bit more in terms of guild perks, but it sounds like barbarians will be able to interact with the system.