pokemon promo cards gamestop Mega Evolution" Store Promos Revealed: Xerneas and Yveltal! - PokeBeach Attack 2 GameStop event limited amounts :

For each time you put your hand back, you have to put an additional card on the bottom of your library

since your sneaky creature is unblocked, it lets you get the damage trigger

1 Traditional foil showcase magnified or showcase dossier common or uncommon A Booster Fun uncommon (20 uncommons total) appears 37.7% of the time, with the remaining 62.3% of the time being a common (11 commons total)

Given these cost much, much more because they include alternative art treatments and additional chances to grab rare cards, we'd still recommend Play Boosters as a way into the hobby, or if you're just looking to build up a sizeable collection of cards without spending crazy money