number cards yugioh 71: Rebarian Shark CT14-EN005 Super Rare Limited Edition Mega Pack 2017 : Toys & Games your opponents cards and effects cannot be activated Yu-Gi-Oh! Wiki - Numbers Protection

Its important to distinguish that the more swirls your Holo Energy cards have, the more rare they are

Yes, effectively our opponent is locked out of casting spells for the rest of the game

Link Summon "Clockwork Knight" using "Core", sending "Realm" to add "Clockwork Night"

it is advertised as "the event where new players can approach the game, and start building their community"

2019 Pokemon Sun and Moon Unified Minds Full Art Mewtwo and Mew GX #242 Secret Price Range: $60 to $400 Highest Sale Price: $1,925 PSA 10 Supply: 778 The 2019 Pokemon Sun and Moon Unified Minds Full Art Mewtwo & Mew GX #242 Secret card showcases the combined powers of Mewtwo and Mew, representing a clash between technological adaptation and natural evolution

That means you can copy Explosive Vortex from the new Charizard ex [Pokemon 151] to OHKO your opponents Pokemon before they get a chance to OHKO you