Drive Players to More Events Schedule your next events while you're setting up Prerelease
Its a super valuable staller, because most fast decks focus primarily on setting up a big Pokmon ex card and little else if your opponent is about to sweep, you can swap in your Oricorio and prevent that from happening (provided they dont have a Sabrina handy), forcing them to waste energy or resources to get another Pokmon ready to take it out
send 1 "Blackwing" Synchro Monster or 1 "Black-Winged Dragon" from your Extra Deck to the GY, and if you do, until the end of this turn, the targeted monster loses 700 ATK, also negate its effects
What interested you in collecting Gray Stamp cards specifically
Magicians of Bonds and Unity Magicians of Bonds and Unity cannot be normal summoned/set but must be special summoned from your hand by having 25 or more cards in your GY
This leaves very little room for their use and can severely hamper their strategies