While the skill tree in Wolcen is nowhere near as big as some other action RPGs, it is one of the more interesting to navigate. It allows you to customise your character into the type of character you want them to be. You could be a dedicated warrior that specialises in tanking damage and cleaving through enemy ranks, or a mixture of an assassin class with a bit of poison magic.
Wolcen skill tree: how to upgrade your character
