The game itself is identical to the in-person, in-paper TCG in that you need to knock out all of your opponents Pokmon, take all your prize cards or deck your opponent - by causing their stack of cards to run out - to win
Additionally, when you make a Spirit via Quintorius, you can pay to reanimate Vangaurd and trigger Quintorius again
TCG players will likely be familiar with the Standard and Expanded formats
Now that it's rotated out it's become less commonly seen, but it's still a great card
This is even more of an issue for black cards, as there are a ton of ways to return black monsters from the graveyard
Needless to say, seeing a Pokmon that looks like its wearing a KaibaCorp mas production disk (oops, I mean, I have no idea which version) seems a bit silly