your card sleeves Vault X: Exact Fit these exact fit sleeves (64mm x 89mm) provide a snug fit for standard TCG cards up to 63mm x 88mm Book of Curses – Spellbook

Once per turn, during the Main Phase, if you control no card in your Field Zone: You can activate 1 "Necrovalley" directly from your hand or GY

Despite this promo set being called Dragon Discovery, Quagsire somehow made the cut because why not

Earning and purchasing packs : You can earn more than enough gold each day to unlock a card pack of your choice

The only card text that matters is the rules text, which is identical to the standard version

Mewtwo ex can be obtained from Deluxe Pack: ex pack in the Deluxe Pack: ex set

They will also reportedly have several new cards not contained in the major set and designed specifically for the multiplayer format, as has become standard for these products