If you take acuity for the mage skill arcane ascendance along with the increase spell power and cast speed per second while active nodes you can literally have an infinite amount of each before you even cast a spell. Since you don’t lose mana with acuity once you activate the skill you can go to the store and come back with 30k spell power . Add the ability to cast 12 spells before it expires and you can see the issues it presents especially in arena. On higher waves you can just wait to start a new wave set until you get so much spell power that you one shot mobs. Not a bug just very broken . Please fix ASAP.