These cards don't have other variant art or frame treatments in ONE boosters, and the extended-art treatment is only found in Collector Boosters
Secret Lair x Fortnite consists of two mini sets: one for general Fortnite cards containing reskins of existing Magic cards and one for lands and locations in the game
With Pellinas effect, Special Summon X-Saber Bruno as one of the 2 monsters so you can use its effect to add a Saber Spell/Trap from your Deck to your hand (like Saber Combination, Saber Slash, or Saber Hole ), and pick a non-Tuner whose Level adds to Brunos to equal the Level of your preferred Synchro Monster
One mana, instant speed, and clean exile makes it one of the most efficient answers ever printed
The normal Mew VMAX art was created by Akira Egawa and perfectly represents the chaotic nature of its psychic powers, making it a fun collectible for fans of the Pokmon