Cool game. I feel like I should preface this by saying I'm playing on the browser version. Ah, and I'm also aware that newer projects take precedence but I did come across this in my first 20 seconds of scrolling the adult tag (I also don't know how the viewing order is done on itch, so this may mean nothing) - and I really like ranting. ok :
I find it weird that freeze is forever, even though the tooltip - and the pause button tutorial - mentions that it should last 2 turns. As such, i just freeze everybody - who doesn't get one shot - and heal. Makes it a bit easy and - even more egrigiously - formulaic. Also means that I dont need to care about health. Just freeze from highest dmg -> lowest dmg. Only thing that could get the neurons firing is rerolls. Unfortunately, the real reroll is bashing frozen enemies to get a good heal number. Ooh and maybe after fixing these issues it might be a good idea that when hovering over healing, the damage you're about to take is instead replaced with the amount you're gonna heal minus the damage to take. Should be visually distinct though, maybe put parentheses when showing the total value. Maybe even - if you're feelin' like it - showing green if heal > dmg, red(reason for visual distinction) if dmg > heal and gray if equal.
Oh and the 'active upgrades' should be something like 'Ice x15 Fire x2 ...' instead of 'Ice Ice Ice Ice Ice Fire Ice Ice Ice ...'. I also feel like special upgrades such as healer and wheel should be seperate(Speaking of wheel, introducing it as one time - which sounds as consumable as the defence upgrade - makes it sound undesirable when it's undoubtedly the best upgrade. Made me skip it a few times). Little icons for the upgrades would be cool. Simply adding it to the top instead of in a button might also give a bit of life to the screen. Oh and definitely a timer to the defence upgrade, should also be seperate to both special and elemental upgrades.
Also the fact that elemental upgrades are pointless after 10 of them is kind of annoying. Maybe replace one of the other elements with the one picked. Otherwise, it's defense/health > literally anything else = useless. Oh and since health gets better but defense is static(excluding enemy n° because it because it quickly just becomes 4 and no more), health eventually greatly surpasses defence.
Ah, and eventually the pictures of the enemies become total black (I assume assets are not loading). Also leaderboard is not loading.
Oh and the settings should have a reset button. I like your green - and it fit with the background of the page. It is unfortunately now lost forever (or you know, I could reset all my progress but that seems drastic). Also the buttons on the settings package (color picker & color wheel picker) should not have the same background as the color picked. Makes it hard to see for some of the colors. Oh and the font makes it so, visually, 7 = 1.
Finally, what does poison do? Apparently only one stack is applicable and it adds +5(in green) next to damage to take. First of all, why is poison associated with green and pluses. Makes it seem like a heal. But really, I'm just curious why it doesn't do anything to my health when I'm not taking damage. I'm pretty sure 0 + 5 = 5 not 0. I did the math and when taking other damage, it does take effect. I just don't know why it would only do it when taking other damage types. Also, just as infinte as freeze. Actually wouldn't mind stacks and sticking through different battles. When I have 5000+ hp and the enemy's minimum dmg is +30, 5 poison dmg seems kinda pointless.
In total, good game, needs a bit of polishing, but that's fine. Mostly played the game 'cause I like ranting/critiqueing. Also was hoping for NSFW 'cause of the adult tag but I can go for some good 'ol gamblin'. I did play until latest update(ya know, poison enemies), lvl 53 specifically.