I have followed on Steam though, because I can see the potential!
But please don't use AI art. Visually the game looks nice if not for basically having no identity, because the art is all in different styles. I can't look at a card and definitively say "ah yes, that's a card from Pack Tactics! I recognise the design style."
As many creative people in the game industry will agree, ask around! Someone out there will do you a series of art designs for cheap or even free!
Or, as many physical card pack games do on their cards - display the artist on the card itself proudly! You could ask the community to draw some art for your cards, and your favourites get to be included in the game, or get unlocked as alternative art for a card once you win a run with it in your deck or something like that!