The mana changes to mages hold them handicap even at lvl 18 if they don't buy mana items
Before, if you didn't buy any mana items, mana became a non issue as you became closer to lvl 18. But now, just farming at lvl 18 with no mana items is a hassle. I can only clear about 4-5 waves as a mage before I run out of mana, forcing me to buy one of the three mana items
.
I honestly feel that mana should be an issue in the early game, but mid to late game it the issue should go away as its more of a hassle than management of a resource.