Skill tooltip description is offscreen
Also I think you should realy change how speed scale up, because once you get closer to 0 it's exponentialy better until it's 0, try to make the speed value increase and fill a bar, and having high speed simply multi-attack, this change thie current exponential scaling to a linear one
you can go past floor 14 at level 75, have a healer with 100 in heal, and a dps/tank with 150 in health, should be able to survive indefinetly to the ennemy
I would advice reduceing by 50% all gain and make active windows have 100% production value
less frustration for player, still same balance :)
Good luck with your game ^^