Any set that features shiny variations in the Pokemon TCG is sure to be a hit, and the same holds true for Power Keepers
SR Super Rare Thunderspeed Summon X SPELL Quick-Play During the Main or Battle Phase: Immediately after this effect resolves, Normal Summon 1 Level 10 monster, or, if you control "Queen's Knight", "King's Knight", and "Jack's Knight", you can apply this effect instead
Use one of your Active Pokemon's attacks
When your opponent activates a card or effect (Quick Effect): You can return 1 Xyz Monster you own attached to this card to your Extra Deck, then you can Special Summon that monster from your Extra Deck, by using this card you control as material
Draw a card for each one they gained control of this way