Each one of these Pokemon Halloween cards has the Pumpkachu stamp, a cute seasonal addition to the art, unique to the Halloween season
Force of Will (and others) Magic's best free spell, Force of Will, is one of the best counterspells in Magic (and has some of Magic's funniest proxies!)
** 16 players are required for the event to fire
No matter what, you'll get all the benefits you are capable of receiving assuming each of your Myriad tokens hit - if the player with the most is you , you won't get it, but you will if it's anyone else
Mist Slash and Dark Mist GX are intriguing Attacks, with the former providing 130 damage without Weaknesses, Resistances, or Effects and the latter allowing you to move a Benched mon from your opponent into their hand, including all attached cards
If a creature with an aura is destroyed, the aura goes to the graveyard with the creature