For one, your opponent cannot activate the effects of those cards, and your opponent cannot use those cards for special summoning from the extra deck
Outside of that mode, youve got Free Duel, which allows you to pick an opponent and duel away to your hearts content and the latest cards
Banlist History Restriction changes recorded for Sunavalon Daphne
change it to face-down Defense Position, and during the End Phase of this turn, change it to face-up Attack Position
Changes: Introduction of Link Monsters Old Monster Zones renamed to Main Monster Zones Addition of Extra Monster Zones Monsters Summoned from the Extra Deck can only be placed in the Extra Monster Zone, or a Main Monster Zone that is being pointed to by a Link Monster Relocation of Pendulum Zones into the outmost Spell & Trap Zones Master Rules (April 1, 2020 revision)[edit] The Master Rules revision of April 1st, 2020 are the current rules in effect from Series 11 on