mtg card sleeve size mm Kings Standard Sleeves – 110 Count, Clear 60 Micron Thickness, Medium (63.5 x 88 mm), Compatible with Magic: The Gathering & More – SKU: SKS-8810 : Toys & Games These inner sleeves are designed specifically to fit inside other sleeves. Sleeve Size Chart : r/mtg

Hydreigon can be obtained from Mega Rising: Mega Gyarados pack in the Mega Rising set

You can get everything you need in a single purchase, or unlock most of it slowly by playing for free it's one of the most generous 'freemium' systems out there

The text/art matches the ones I own, they are probably real

I know 21 commander damage got decided on due to the original cycle of Elder Dragons having 7 power and you getting hit three times equaled 21 but the book quote is just so fitting for our format

Note: Probably a mix of Psychic, Pickup , and Pick-me-up

XY Pokemon cards can be a solid investment, especially rare cards in mint condition