A fun turn-based game! not gonna lie I spent a good 2-3 min wondering why WASD wasn't working till I realised its all mouse based but the game has a great basis for a even better experience. Quality of life features like faster animations/ turns would also be useful, as a strategy would be keeping an enemy alive while you spam mana and healing on yourself would take awhile to do..
Viewing post in Tower of decadence jam comments
As you mentioned its a long process where the player would try to heal themselves at every room since even with an attacking enemy, you can still out-heal their damage. so maybe have a limit on heals and mana per room or simply recover the player at the end of the round (since this is near equivalent to the end outcome of this strat). But still this is just my opinion, feel free to ignore it or use it and all the best for your game dev journey!