White does the heavy lifting of modifying your creatures with counters and equipment and auras while blue provides evasive threats like Malcolm, Alluring Scoundrel to carry all those modifications
There are a whopping 38 cards in Outlaws of Thunder Junction that have or reference plot, with most of them having a cost that the owner can pay to plot the card from their hand, a few options to plot some of your other cards, and, in the case of Aven Interrupter, a way to plot opposing cards as a tempo swing
With Fragrance Trap in play, theres no need for the Sabrina Trainer card, allowing players to free up deck space for other Pokmon or items
Looking up prices tends to make the seller nervous, like you're pulling one over on them, and once they start seeing that TCG-mid is 40% higher than your offer, they are less likely to sell
Dusk / Dawn Dusk / Dawn is an aftermath card that White Weenie decks can exploit to the fullest
But mostly, Skarmory is sufficient as it even deals with Oricorio