Hellkite Tyrant ( F, T ) - This is a good win condition for a treasure deck
If you start with some powerful cards but cant find an archetype lane to hop into, consider prioritizing mana fixing over filler and trying this out
Mewtwo Stall - These decks aren't that great
Its going to be good in Selesyna lifegain decks too, of course, and in +1/+1 counters builds generally, as its still a growable 3/3 Flyer at the end of the day
The Leader effect delays the attack of the opponent's Leader and Characters by a turn, letting you control time in the game
For more collecting advice, here's our record of all Pokmon sets ever released, and a spotter's guide to fake Pokmon cards