Hi team! Now this is an interesting idea with the specialisations. Tank mages could perhaps have spells to either minimize or negate damage taken for the team, perhaps create barriers/walls. Stuns and roots could be cool on tank mage aswell. The idea with an ice mage is awesome in my eyes cause i have always loved ice mages. They could perhaps have a large scale freezing slow like a blizard, make people into an iceblock for a few secounds maybe. Throw out spears of ice at enemies, make it rain ice from the skie in an AOE. This is awesome!