does gamestop grade cards Experience with Submitting Sports to PSA for Grading through GameStop Grading : r/pokemoncards

Lastly is the Twisted Miscut like the Sylveon GX from Hidden Fates above

Assault Vest has a similar effect but with a specific restriction and no attack bonus

SR Super Rare Vylon Delta X LIGHT Level 7 [ FairySynchroEffect ] ATK 1700 DEF 2800 1 Tuner + 1 or more non-Tuner LIGHT monsters If this card is in face-up Defense Position during your End Phase, you can add 1 Equip Spell Card from your Deck to your hand

Kindly note that these are the prices on eBay are as per 29 July 2019

Play proceeds like normal, however, each Plane has an effect that is active as long as it is face-up

No, there arent any platforms that offer higher payouts for bulk Pokmon cards