These are the rarest cards in each expansion, typically followed by Immersive rare cards, then Rainbow rares, and so on
Oath of Lilianas last ability will trigger even if the planeswalker that entered the battlefield under your control is no longer on the battlefield, no longer under your control, or no longer a planeswalker
Building up energy on the bench and then using this supporter card will be beneficial to instantly have this powerful attack back at the user's disposal
So there you have it, thats all you need to know about Special Conditions in Pokemon TCG
There are some people who actually play the trading card game too, though these only make up only a small fraction of all collectors
And frankly, even if I ever reach the point of owning every card I could possibly want, Ill just keep my non-foils and spend that extra money on things unrelated to Magic, thank you