The Fourth Admiral: I’m Invincible When I Sacrifice My Intelligence

I suggest turning the protagonist into someone like Whitebeard Jr.; That would truly be a sacrifice of intelligence. What you're doing is just not using intelligence at all.

If you don't even have an IQ, then aren't you just an idiot?

Do people who would sacrifice their intelligence even have any intelligence at all?

Without intelligence, one can't even distinguish between enemies.

Whitebeard is your dad? What a load of rubbish! He's old and still takes down the main character with a single strike? The main character is Akainu, an Admiral-level fighter, and he's not even qualified to challenge him? That's hilarious.

Sacrificing your intelligence? That's just being an idiot, like the guy drooling in the mental hospital. You should be more careful!

Everyone thinks intelligence is useless. How high can intelligence really be? What's a few points of power it can buy?

There will always be books that sacrifice intelligence; do you really want to be a fool? Even if you were given invincible power, you'd still be a fool.

Lacking intellectual intelligence is just intellectual disability! Like the second Whitebeard.

The protagonist transforms into a Celestial Dragon, and sometimes goes insane. When he goes berserk, he kills several Celestial Dragons, and those Celestial Dragons want the protagonist dead. Knowing that the protagonist was difficult to kill, several Celestial Dragons teamed up, took out more than a dozen Devil Fruits, and made juice from a small amount of each Devil Fruit for the protagonist to drink. Pig's feet die