Release Hancock, Teach, before I do something we both regret.
Man Rayliegh is a legend
Blackbeard was forced into a corner. If Rayleigh attacked him, Blackbeard couldn't defend himself without releasing Boa.
Blackbeard couldn't hold back Boa while fighting Rayleigh at the same time: Rayleigh COULDN'T beat Blackbeard by himself, but, if Rayleigh attacked, he would have freed Boa, and they would have fought, and probably beaten, Blackbeard.
I like this writing a lot, it makes Boa, Rayleigh, AND Blackbeard all look strong. Blackbeard feared Boa, and neutralized her with his Fruit. Rayleigh showed up, and Blackbeard realized he couldn't win against both Boa and Rayleigh. So, he leaves, and everyone gets a powerscaling win.
I hope 1060 is this good!