Question Implementing Turn-Based Combat into a Collectible Card Game [2020.3]

I have been working for a while on my CCG project. And I'm kinda stuck on how to put turn-based combat system into the game itself. Also been studying on Brackeys' tutorial on the said matter, but it's in the case if you want to do a simple way akin to Pokémon (not the TCG). What I wanted, is to use the cards I made, as the both the HUDs and prefabs instead of separate objects. Kinda making into how Hearthstone is played out, albeit without mana costs involved.
The framework of my card game is created from scratch based on M.S. Farzan's tutorial I've watched and followed recently, with minor alterations I made to suit my preferences. Is there a way I can implement the battle system on each card I play?

Please leave a reply and thanks in advance.