I really enjoyed this. The tournament format is already cool on its own, adding a deckbuilding manager to this makes the game really engaging. Lots of different girls of all shapes and sizes to choose from and gradually watch your favorites grow (some hot imagery on some of the cards, too). You even included characters from your previous game, which is the kind of thing I always enjoy from creators. I'd go as far as to say this is currently one of the best giantess games available, especially if one doesn't mind AI art.
But seeing as you're still updating this, I thought you would appreciate getting to know about some bugs in the current version (all of this is about the free version available here)
- Battle messages occasionally show leftovers from the RPG Maker templates. For example, if your char's name is Mary and you get hit by stuff like the burning effect it says "Mary%1 is bleeding heavily" instead of just "Mary is bleeding heavily".
- I saw some talk about Gisele having a one-hit kill move in the comments, and it seems she still has it. Maybe it's because I was allied with her, but when I fought her she would sometimes use "Eye of Dominance" which would do like 1590 damage, way higher than any other attack.
- The "???" fight doesn't work, got a "can not read property '_cardHand' of null" error once she added some new card into my deck. Seems I'm not the only one to experience this. At least it's optional.
- When you first talk to Izel in the Decaying Gardens, there's a brief bit where Sonia's sprite randomly shows up, even if she was eliminated a long time ago.
- You can only donate three digits worth of height to your ally at a time, but this seems like a pointless limitation since you can just go to the Goddess and donate to the same girl without limits.
- The Goddess in the Temple stops updating her list around day 10 or so. For example, in my playthrough Liliane and Phatrelle eventually got eliminated, but the list still had them. On the other hand, there were a few late newcomers like Estelle who were never added to the list no matter how many times I checked.
- Speaking of elimination, not sure how much of a bug this is, but the smaller girls can drop into negative height during the day yet still somehow regain just enough to not be eliminated for the night. In my playthrough, in the latter days there was a bunch of girls who were constantly like -300 or -1000 during the day but for the final showcase they always somehow gained just enough height to go back into 150+.
Lastly, this one isn't really a bug but just something to consider. Like I mentioned, this game is generally fun and engaging, but I'd be lying if I said the latter days weren't a chore. After a certain point, I got stuck in a routine where nothing seemed to progress. There was just me, my ally, and seven other girls, of which only three were decently strong, and the other four were constantly on the brink of elimination yet never quite there (see point 7). I appreciate that there are a few side quests to change things up, like Lilith or The First Giantess, but even with them I still largely spent the second half of my playthrough just battling the same girls over and over until Valeria finally was small enough to resign. I feel like there'd be an easy fix for this if you just allowed us to place bigger wagers than normal when fighting Valeria. Celestia and Izel allow for this, so why not her? Instead of chipping away at Valeria with wagers of 70-80 cm per battle (Succubus and Titania cards raise this to around 250, but that's still not much) you could place, say, wagers up to 500 cm, vastly speeding up the process. Just something I thought would really help make the late days less repetitive.
You have a really cool project going here, and I think it could be even better with some polish.