For the supposed mage nerf they got increase mana pool and manaflow band .
Manaflow band give 250 free extra mana and a passive regen based on missing mana . All the mage received at lvl 1 70 or more mana and a better mana regen for losing 25 mana per lvl instead of 50 per level . Idk wht there is to brag about it but i never had problem managing my mana but the item nerf are justified for getting extra damage on minion on the doran ring . Cass annie or annie ability spammable with low cooldown would mean you had infinite mana . It was braindead .