The only card in the sideboard that slightly dilutes the decks game plan, but it can be worth it for extra combo protection
They're one of the two planeswalker cards that has X in its casting cost (with Nissa, Steward of Elements being the only other)
Summary Journey Together set has valuable Pokemon cards like Lillie's Clefairy EX worth up to $1,000
And secondly, if you're new to Pokmon card collecting, buying high value single cards isn't the ideal place to start
Effects that modify a creature's power and/or toughness without setting it will apply to the affected creatures no matter when they started to take effect
That said, the best of them is another card I initially slightly underrated that I think may end up being my favorite card in the set, Hangarback Walker