Power of Attorney for Michael Neruda

This filing is an Exhibit 24.1 - Power of Attorney, where Michael Neruda, a director of M3-Brigade Acquisition VI Corp. (MBVI), appoints Charles Garner as his attorney-in-fact. This appointment authorizes Garner to execute Forms 3, 4, and 5 on behalf of Neruda for compliance with Section 16(a) of the Securities Exchange Act of 1934. Garner is empowered to take any necessary actions to complete, execute, and file these forms and any amendments with the SEC and relevant stock exchanges. This Power of Attorney remains effective until Neruda is no longer required to file these forms or until it is revoked in writing. The filing indicates that Neruda is not a ten percent owner, not an officer, but is a director and has granted full power and authority to his attorney-in-fact.