yo My Man, are you insane? 7gated Guy would solo the fuuck outta Raikage.
Please allow me to precisely elaborate on the utter obvious self-explanatory reasons why.
so as we know, back at the chuunin exams, when lee opened just the 4th gate, he moved so fast that he Caused a sonic boom, and generated a miniature earth-quake
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His body emits so much power that he's able to move at untracable, nearly supersonic speeds, and cause
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Now lets take a look at Guy when he opens the 6th gate. the man moves so fast that
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also, he's able to move his fists at super sonic speeds which actually causes a fiction with the air, setting a fire,
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when he opens, the 7th gate, he's able to bend air pressure to his will and shoot off a rocket launcher-like attack that's a one-hitte quitter
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Now, the raikage only combines his lightning armour with the Body flicker jutsu which allows him to traverse short distances almost instantly. raikage's speed is nowhere near on par with the 7th gate.
Raikage doesn't generate sonic booms and miniature earthquakes when he move, his feet and fists dont catch on fire when he attacks, His body doesn't emit so much power that he can run atleast 200 miles per hour and land devastating nearly one hit K.O Punches. all the raikage does is combine his lightning armour with the body flicker jutsu, nothing more.
like seriously, it's not that hard to understand, it should be perfectly self-explanatory that its a matter of physics. Raikage will get his Sh*t Wrecked if he goes up against a 7gated guy. you cannot defy science.