Note: Limited Duel is a side event format in Japan similar to the TCG’s Time Wizard and other similar formats, where special restrictions of gameplay and Deck building apply.

Period: January to March, 2025
Deck Construction Restrictions: You can only use Link Monsters in your Extra Deck.
Details: You can only reduce your opponent’s Life Points to 0 via battle damage from your Link Monster’s attack.

■ Rules are Master Rule (April 1st 2020 Adjustment)
■ The damage that finally reduces Life Points to 0 must be from the attack of the above mentioned monster. Any damage is fine prior to that.
■ “Exodia the Forbidden One” does not win the Duel
■ If a player Decks out and a player cannot draw when they have to draw a card, the Duel is a loss for both players
■ If you attack your opponent with a monster that would reduce the opponent to 0 LP but is not a Link Monster, they take no damage.
■ If you attack your opponent’s monster with a monster that would reduce the opponent to 0 LP but is not a Link Monster, they take no damage.
■ If you attack with a Link Monster with less ATK than your opponent’s Link Monster, you take no battle damage.
■ The effects of Link Monsters you control cannot reduce your LP to 0 by cost or effect damage and such effects cannot be activated.

Source