Hand wraps would be a d4. When in combat, you choose either a Might, Finess or Magic skill check. I'll give a DC to hit and you'd roll your skill plus any weapon/spell/expendable. Some challenges may require a specific skill, like ghosts would require a magic roll or a metal clad golem may require Might. If you use a weapon that's covered under one skill (Finess) but use another skill, say Might, you incurr a -2 to your roll so be choosy on skills you use, equipment you focus on and team mate's you pair with.

I'll give you an one time choice: you can have an amulet that boosts magic or the wraps, not both