The Dream Eater Colleseum mechanics seem to flow better as a card game for me than the deck mechanics of KH COM. The limited hand size rather than having every card in the deck available at once, being able to block with a card rather than just card break, the cool down timer for playing cards. The sleight mechanics could still function similarly to stacking cards on top of each other like in DDD.

I did enjoy the original COM gameplay, but I know a lot of fans didn't. Would changing to a system like this make it more enjoyable?

Compared to re:CoM, I think I’d actually enjoy it a lot less. The Dream Eater minigame is fun and all, but I found it kind of repetitive and boring after a while? Granted, I didn’t dive too deep into it. So maybe there’s a surprising amount of depth to it that I just didn’t notice.

The gameplay in CoM isn’t my favorite, but I still found quite a bit of enjoyment out of it once I got into it. Albeit I found it sometimes a bit tedious to simultaneously browse through the cards and trying to avoid the enemy’s attacks. But that could just be me being bad at multitasking lol. And you can somewhat work around that, too, by putting some thought into how you set up your deck.