The update is great and added a lot of cool mechanics. While in 0.1, for example, winning with yellow was super difficult, it's very easy if not too easy, but very fun now! Though it was maybe buffed a bit too much. With the free 2x point gain card and getting a store refresh counter every round, you can easily build a deck that escalates to growing over a 1km tall by only using yellow height drain cards. Since every of these cards can draw a card while you drain height, you can easily build a deck where you can cycle through it entirely every turn, basically throwing your entire deck at the enemy.
During the last update, I had the discussion about adding card removal cards would be too OP, since you can quickly draw your mega combo every turn, but this update added so many card drawing cards, it doesn't matter anyway. The big problem right now is that: There is no resource system for playing cards. While the enemy can only play three cards at once, you can throw the entire deck at your enemy. Also because a lot of the cards don't have any synergy, I sometimes resorted to just spam clicking my cards and hoping for the best until my hand was empty, but this is more a late game issue.
But I think it's great we can finally buy healing cards and the staggered card effects are pretty neat too! Since Slimantha deals a lot of arousal damage when you are super small, it can save you from a dangerous situation! Speaking of arousal: It feels like this has been nerved a ton in this update, making winning with only arousal characters almost impossible, since Slimantha heals 10 arousal every turn. Because purple cards also play around being smaller than the enemy, the entire "going micro" strategy fall flat as well, since Slimantha deals 1/4 of your entire arousal threshold every turn, if you become too small. I absolutely adore the special cards she has when you are micro, but this situation is super hard to reach if she isn't in neutral due to dealing 20 arousal a turn while healing 10 or so herself. I would definitely love it if you expand the entire "going micro" strategy and being able to easier beat her with arousal alone.
Last thing: It's super funny how you buffed the character card of green even more. In 0.1 I thought "20 damage? That's super OP!", but now it deals 40 by paying a tiny tribute.
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This is what I feel currently about the balancing. I know I shouldn't criticise about the balancing if there is only one enemy, since they also have their preferred strategies, but I feel that every character should be able to confidently beat Slimantha and coming enemies with their designed strategy.
Also, it would be really cool if you add reference objects to their height delta or change the background images depending on their height. This would make the entire battle even more fun.