The balancing needs some serious work.
The scythe boss feels brutally artificially inflated and frustrating, because she almost always reduces your own turns to only 1, boosts her own turns to like 5, heals all damage done to her, then deals massive damage that you absolutely CANNOT heal as fast as she dishes out - in large part due to the fact you had your 3 or 4 turns reduced to only 1 - even if you're using shielding to tank some of the damage she does.
To a lesser extent, this is also true for the more basic enemies you face before that.
You may only face two of them at a time, but because they keep lowering your already unimpressive amount of turns to barely anything - and they do so *frequently* - while also healing most damage done, once they're under 60 HP, it drags, what should be a relatively straight forward fight, out into getting boring pretty quickly.
On top of that, most of your abilities aren't explained at all. They're just icons you have to click and hopefully figure out in the middle of a fight.
A hover-over tool tip would be perfect in this case.
TL;DR:
Game is currently too heavily balanced in the enemies' favor, making fights a drag, if not outright frustrating.