The Tera Charizard is one of the best pulls from this set , as well as the shiny Mew ex, a full art Gardevoir, and a Miraidon ex, which are all well worth finding
I didn't write any of the companions, and there was a lot of side content I didn't touch (the game is huge!)
It wasn't the fact that they just started - they actually were in it a little bit longer than people have known - it's just that it started to go viral. The last time Pokmon cards saw such a significant rise in interest was in the wake of Pokmon Go, the hugely popular mobile app that became the summer phenomenon of 2016
Opal has had a particularly strong showing, notably appearing in several artifact stuffed lists that aim to win the game with a kitted-out Kappa Cannoneer, while Green Sun's Zenith showed up in a modified Yawgmoth list, as well as an Elementals deck running Omnath and Risen Reef
They can be pretty tricky to work with, however, since being behind on lands isnt really where you want to be in most games
Youll want to start with Cinderace vs Pikachu