Each card contains information related to a particular game
being unaffected by other monsters' effects
Unsurprisingly, it's Charizard's gold crown ex variant that most players are chasing, though their chances of packing it really aren't that great
In Rush Duel , due to being initally spearheaded by the first Maximum Monster, "Yggdrago the Sky Emperor", early Cyberse monsters had a focus on the mechanic, often offering large amounts of draw power to ensure the player can obtain all of the Maximum Monster's pieces
These allow you to have a separate deck full of contraptions that add a new dimension to the game without muddling up your main deck
This could be a crazy effect on a Pokmon like Gholdengo, and it might well be worth the slot