This may well be as 'Universes Within' cards filling the list slot of set boosters, which is how the mechanically original Stranger Things Secret Lair was reprinted for general access
If you want to turn the deck up to 11 then Urza, Lord High Artificer is probably the best single creature you can add and you need nothing else to win the game, just activate Urza
This way, Whimsicott EX rounds up to 210 HP
Purple Nightfall and Blue Sky are excellent at eating Hand Traps, baiting disruption, and getting you extra Mekks to work with
Energy Zone Unlike the physical Pokemon TCG , Pokemon TCG Pocket doesnt use Energy cards
If you pile up a mountain of defense cards, it will be difficult to draw this card next time, and if you incorporate some kind of search method, there will be few things to deal with, and in the first place, you will often win in a short time