UNCANNY X-MEN (1963) #203

SECRET WARS 2 The Phoenix must kill…the Beyonder?! The X-Men wake up to find that Phoenix has gone off to battle the Beyonder alone. She finds him on Alcatraz, she attacks him with everything she’s got, but nothing happens. Then the Beyonder gives her the power to destroy him, but at the same time he creates Omega series Sentinels and unleashes them on the X-Men. He gives her the choice « Slay me or save your fellow X-Men « . The X-Men defeat the Sentinels, but with considerable damage to San Francisco.…