This game hits you with great vibes from the get go. The art and sounds are impeccable.
I like the concept of switching wizards at will in a roguelike (needing to manage each character's health and mana). However a few elements did not fit together for me: firstly having to choose to send a wizard away each time feels like I should just pick the one that has low health/mana so they're not a liability, so it isn't that interesting of a choice (perhaps you could auto-pick the one you spent the most time with, to force you to diversify in later levels). Also the fact that you start with 10 is quite overwhelming, and I'm mostly picking wizards at random, and the only reason to change is if I'm out of health/mana.
(The wizards kind of play samey; I wish they had more diversity like melee. Their special abilities are cool but so expensive that they're like ultimates, you can only use them once and then that hero is basically used up, which means mostly they're all just shooting the same fireballs.)