Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - General Glass Cannon Without Lone Wolf.

I don't think GC needs a complicated revamp to fix it. Simply,

Change it to give a flat recovery AP and max AP bonus of 4
It makes Constitution 50% less effective

This lowers their hp, gives them a sizable bonus to AP, encourages the player to keep dumping points into speed, and discourages them from pumping their constitution back up.