Kizaru casually trades sword blows with Rayleigh, another legend.
Kizaru's laser beams produce heat (as that's what lasers are) giving him a match up advantage
Kizaru has a greater defense.
Kizaru is faster.

Give it up.
Kuzan hits harder.
Kuzan has shown greater Endurance and Stamina
Kuzan actually beat his MF oponnent while Lizaru couldn't.

Kuzan literally bodied someone stronger than Old Ray

It's over
 
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