Are magnets banned in BattleBots?

I'm curious, could you please clarify if magnets are indeed prohibited from being used in BattleBots competitions? I understand that safety and fairness are paramount concerns in such high-stakes robotic battles, so it would be insightful to know if there are specific rules in place regarding the utilization of magnets in these intense competitions. Additionally, could you elaborate on any potential safety hazards or unfair advantages that magnets might pose in a BattleBots setting?