What are the rules regarding the use of proxies in a tournament?

In sanctioned tournaments, the rules explicitly state that proxies are not allowed. This means that players are required to play with authentic cards that are legal for the tournament format. Sanctioned events follow stringent guidelines to maintain the integrity and competitive nature of play, ensuring that all participants are using legitimate cards. This helps avoid issues such as confusion over card quality, authenticity, or legality, which could give certain players an unfair advantage.

Options allowing for proxies under specific circumstances or for testing purposes do not apply in the context of these tournaments. The prohibition on proxies is a clear guideline to promote fair play and consistency in card representations during competition.