On a phone, great card art has to read at a glance without losing its magic....

https://www.bookmark-ignite.win/why-do-some-mobile-cards-feel-rich-without-becoming-hard-to-read-this-article

On a phone, great card art has to read at a glance without losing its magic. Pokemon TCG Pocket shows how composition, selective detail, and tap-and-hold immersive cards can reward a closer look while keeping the board clear during play.