I agree with this.
While I do like the idea of a Trading card-looking concept, it makes the images warped, cramped, bulky and take up a lot of space. I would be willing to try and redesign this myself but I can only suggest to simplify this UI as much as possible as I am oblivious to the coding limitations of this design.
I suggest that the images be scaled proportionally with length and width if the full image of the creatures are to be used rather than thumbnails. The "+" button size indicating an upgrade be reduced to at least 50%, it's too big, and the lightning effect that comes with it be removed.
But for now, my suggestion is to replace the section where creature ID is at with HEAL and creature ID be repositioned in the creature card itself, it makes sense that when the card is clicked, it'd take you to the creature page, and when the HEAL is clicked, well, it heals.