Ihte_xp

Cultural revolution of china started like this

Unless you reincarnate as Pico

How about an advanced peaceful non magical race who are dedicated to collecting all the knowledge of the universe both magical and non magical and building an interstellar library. Mc could ask for their knowledge in exchange for interdimensional knowledge which they can't access. You can introduce this race after 1 or 2 dimensional travel.

You're a wizard anywhere you hit is fatal why are you trying to be a martial artist.

Most powerful wizards are those that can fight without even having to move. Lika an orchestra conductor.

How about a SI fanfic of bocu no pico with MC reincarnating as pico and experienceing something worth having a PTSD. If you're doing it someday then make sure to name the fanfic Boku no hero: a bnha fanfic so readers can have PTSD from hearing about bnha too.

Some poet's lines

Issei didn't get his girls just fall in love with him, he did work hard for it. He saved Rias from her marriage and helped other girls untie their heart knots and he was even willing to die for them and he did die once. If you put aside his character, which girl wouldn't fall for him, a knight in shining armour.

How about the killing god array in which multiple shadow clones hold 2 tagged kunai each and rapidly and randomly teleport to each other to kill large number of enemies as it would also require powerful computational power.

Ah ah ah hmm ahh ahh hmm oh yeah it goes something like that. You're welcome.