why do some pokemon cards have a yellow border Pokemon Yellow Border W Stamp

In this set, Pokmon finally bring back Shiny Pokemon with the secret rares feature Shiny Pokemon too

The proof status here establishes this rare sheet as one of the very earliest of Pokmon cards released in the United States

This is only good advice in cube play, you will note modern decks do not take this advice and this is because in cube you very rarely face mirrors due to the card pool being what it is

Not sure the burn option matters on Slagstorm

It creates a 0/0 token Creature alongside itself and then equips

One of the clear standouts is the Dragonite V card from eighth-generation set Blue Sky Stream [S7R]