Becoming the Fool, Starting at Hogwarts

This is unbelievable! The author is completely immersed in his "pretending to be weak while actually being strong" world. The protagonist starts by using his clairvoyance to test Voldemort, then shifts the blame to Harry Potter. He's exposed at the entrance ceremony by Trelawney and Grindelwald, and then the author enters a world of playing dumb while secretly using Harry Potter as a shield.

After reading a few chapters, it's truly absurd that Grindelwald can actually glimpse the black mist and even dare to look directly at the Fool of the future. Grindelwald isn't even a demigod, nor does he possess divinity. How could he dare to look directly at the Fool of the future? To put it bluntly, the Fool could only appear if the Harry Potter world were elevated several levels higher. If he looked directly at the Fool, he would surely die.

One of Dumbledore's brothers is at least a demigod; you're clearly outmatched in terms of combat power. With this power structure, how can ordinary people possibly fight against wizards?

The protagonist has been babysitting Harry Potter all along, claiming it's to protect Harry Potter as a shield. So what? Harry Potter survived to the end without the protagonist, Voldemort still managed to deal with Harry Potter, and Dumbledore is still there. So what? The protagonist is now more powerful than Dumbledore?

The male protagonist keeps emphasizing that he needs to play it safe, but he keeps making fatal mistakes.

Hiding his loneliness, he pretended to be a pig to eat the tiger, but in the end, he became a pig himself.

It's quite interesting, but the ranking system was so awkward! Author, what kind of outdated ranking system is this? The names are so archaic. Who still uses this stuff these days? It completely ruins the class.

The original story made characters seem weak because their power levels were suppressed on Earth; yours is fundamentally weak. You keep suppressing combat power and adding a bunch of nonsensical stuff, just trying to expand on other things. The problem is, you can't even write the original material well. The male lead's character is awful; it's fun to write but you can't write it well.

The beginning was good, but it got boring later on. The protagonist became increasingly absurd, eventually jumping right into Grindelwald's face. Not only is the Porter shield they found completely useless, but they also have to protect him. In protecting the shield, they put themselves in the spotlight. So who is really protecting whom?

The protagonist constantly reminds himself to be cautious and develop his strength from the very beginning. As a result, he always rushed to the front. I don't know if the author has read Mortal Cultivation, or knows what the "sneaky development strategy" is, or what "decisive killing" means. The world of Mortal Cultivation is many times more dangerous than the Wizarding World, yet the protagonist still survives well by relying on the same sneaky development strategy.