All of these cards are legal in the Limited format, but cards from any kind of guest list are often banned in Standard
More recent printings are usually better than older printings, but if you line up your cards based on the exterior border, there is still a chance that the art wont line up perfectly
The one we visited is a great place to go if you want to get more friends in-game, discuss game spoilers (tucked away in its own channel), talk about decks, and more.
This can take time, but its worth the wait
Omastar is also just worth it because it can take advantage of Misty, do 70 damage, and force your opponent to retreat their Active Pokemon if they want to attack
There is a randomness to it, having to flip 3 coins, and for each head, you can attach a Fire Energy to a benched Pokemon