Mhm, I love DnD systems (I don't). I'd rather see you just amend the voidal lore express cast limits than try to DnD the server ngl. Creating systems of exhaustion, etc., will just let people find the most apt way to gauge the numbers and create meta. While yes, the current CRP is not great, it is quite easy for a mod to simply be called over, or for a simple screenshot of the RP to be sent to LT, and proper punishment to be handed out. And as someone else said, if you allow a mage to cast 5 tier 5 spells in a combat scenario, you deserve to lose.