Earthdawn works in a similar way to.In the game Pillars of Eternity, martial classes are dipping in a the power of their Soul, like any other class, they just awaken it differently than overt spellcasting. They gain inhuman resilience or accuracy by the same source of power that allows a Wizard to rain fire upon their enemy or a Cypher to re-awakens the memories of a wound on a target.
Being a warrior in Earthdawn means being a particular kind of magical adept.