It's a multiplayer game that incorporates a lot of creature collection and battling aspects, just like in Pokmon, but at the same time, it has some more mature themes and is a little less family-friendly than Pokmon will ever be
But if you can get Bridge from Below into your graveyard, it offers an insane amount of value for free, making a 2/2 Zombie token whenever one of your creatures dies, although you do have to exile Bridge from Below from your graveyard if one of your opponent's creatures dies
As well as all of this, theres an alternate frame on some cards, called the Paranormal Frame
Where the original card's token was a literal bear, it's quite funny to imagine a large, gay man casually coming to fight after a relaxing day soaking in the hot springs
Collecting hobbies are diverse and varied