Guild Leader Tie Breaker match:
Best of 9 match with fully upgraded decks and standard 75% in element(quantum is in element). 7 cards in a 30 card deck can be out of element, for reference.
the guild masters may choose any legal deck to play with at the beginning of each game. They do not have to play the same deck twice, but they may choose to if they want.
The match must be supervised by a GO, both players send the decks they will play prior to each game to the GO that is present(to ensure the decks are legal). Since this duel is deciding the winner of the event, it's important to ensure that there are no mistakes in deck list legality.
Technical difficulties (such as unintentionally clicking away) are forgiven for the first time for each player, but after that it becomes a game loss. If you are having technical difficulties, you may request that you continue th e duel at a different time. It is reccomended that you do a few test games prior to the official match To ensure that you are well connected.
Lastly, what the GO says goes, their word is final. Think of them as the ref.