Board Thread:General Discussion/@comment-174.112.7.243-20130219054819

Hey guys, does anyone know what % extra magicka overcharging spells costs? trying to do some quick math here, need to be able to overcharge master illusion spells, will be wearing full nightingale, amulet and ring both with 25% reduction in illusion cost, for a total 67% reduction in illusion magicka cost, with all perks. So... how much magicka will I need?! 