Immersive cards have a unique grey swirling border to help make them more easily distinguishable, and when tapped on, they will begin an animation that gives a tour of the world beyond the illustration on the front
Summary More Universes Beyond collaborations coming, including Final Fantasy, Marvel's Spider-Man, and Avatar: The Last Airbender
Even though the card does see some play, which well get into shortly, the fact that its a rare from a current Standard set throttles the price somewhat
Pokemon Card Strategy: As far as strategy goes, since this is a basic Pokemon you won't have to wait long to put the defending Pokemon asleep, if I got this card out fairly early into the game I would try and put the defending Pokemon asleep, and then retreat Espeon for only 1 energy card and put a more powerful Pokemon into play that would be able to do major amounts of damage to that sleeping Pokemon without it being able to do any damage back
They joined the TCG in 2012 and feature visual changes like a superimposed Team Plasma logo and blue borders/details