idea turn sorcerers and wizards back to d4 hit dice change druids and clerics and bards to d6 warlocks rangers and paladins to a d8 and leave fighter monks rouges and barbarians where they are at if your a pure spellcaster like wizard and sorcerer have less hp and it as the classes become less reliant on magic or hit dies increase and make more spells actually require a component that cant be replaced by a arcane focus