Volrath, the Shapestealer does exactly what his name suggests: he steals shapes
Gholdengo ex Gholdengo ex has enough HP to survive most hits, and can deal enough damage to OHKO anything in your deck
Then next turn you level up a different Gliscor to poison and paralyze again, evolve a benched Gligar to Gliscor, and continue the paralyze/poison lock for as long as you can
What do you think of the latest Pokmon TCG craze, and do you think that after the Bulbasaur promo card fever abates, attention will shift to another card once overlooked
I dont think he can go any lower than $15 or $20 for a while even if he doesnt see any play (the long-term floor is closer to $7-$8)
Her Pokemon are tough, but you can beat them if well prepared (try catching a Dark-type Houndour on Route 7)