White-Blue especially is interested in bouncing its own creatures to retrigger ETB abilities, so that part of the card will come up in ways other than just to save a creature from removal
It also has background, which means you can tap into white to take advantage of all the many other party and adventure cards in the color combination
It's a Fog
Additionally, please understand and accept before purchasing that there may be minor scratches or scuffs on the PSA case itself, or small debris/dust trapped inside the case
This is provided you have other ex Pokemon to throw into the mixer to help back him up
The process varies slightly, but you'll typically need to select a service level (economy, standard, or express), package your cards carefully, and ship them to the service with tracking information