Thought of a way to portray the warrior Cleric wile still staying into the rules that we all know.
All characters are either a mage, cleric, or druid. These are the base spell archetypes.
Now we further subdivide it to either a worrior, mage, theif, or Cleric, druid (You cant be a mage cleric or a cleric mage, or druid in same combo).
The magic will determine their allegiance the the light or dark or neutrality. The secondary class will determine their actual class.
To keep it simple we can use the BESM magic system (E.P.). If you are a pure magic class lets say you get double your starting EP if you are a warrior Half. Spell are chosen as standard D&D along with progression with leveling.
Example:
Base EP is prim attribute x2 (or however BESM does it)
- A Cleric, Cleric will have double the base E.P.
- A Cleric, Warrior will have half the base E.P.
All players will still be able to dabble in their spell usage and still progress in their chosen class.
Another thought would be use the above with a code of the Bushido