DESCRIPTION
One of my favorite RPG tropes is being able to swap your class at any time! Often by switching out your weapon with a different one. A mage can suddenly go from being a frail spellcaster to being a beefy knight when they pick up a heavy sword!!
Another favorite trope of mine is incompatible equipment being unusable if your class doesn't have the correct proficiency for it. Which is what happened to our half-elven cleric here when he turned into a tanky swordsman!