The "Snap": Only professional die-cutting provides that authentic card feel
There's a hand behind the rules text there it could be Sabertooths hand
Draw Blue and black both offer excellent card draw options, such as Rhystic Study and Necropotence, but consider sharing the love with your opponents
I would try to get Umbreon into the game early on so you can start confusing your opponent's Pokemon, but if you can't get it out early, I would recommend putting it on your bench, attaching three energy cards to it, and waiting for your opponent to put a Pokemon with a lot of energy cards attached to it in the active Pokemon spot, I would then move Umbreon into that active Pokemon spot and use Shadow Shutdown until Umbreon is knocked out or retreated, I would hope to get lucky and flip 2 coins so my opponent would have to discard all their energy on that active Pokemon
Just look at the games main subreddit theres no discussion of playing the game or brewing decks, its all about the sweet pulls and hordes of sealed product theyre sitting on