I created magic novel. What are some ways to make the magic system in it more believable?

Leo is an academic genius who enrolled in one of the top universities in the world for the rich and powerful, but he was born in a common family, which was more than enough of a reason for the other students to mess with him. On one fateful day, Leo found himself transported to a parallel world that was ravaged by monsters and where magic ruled supreme. Fortunately, he was gifted with a Magic System, giving him unlimited potential. How will Leo, who has no knowledge of magic or experience in fighting, survive this grim world filled with the unknown while being an ordinary person himself— or so he thought.

(One of the best stories you can find in this platform!) Yeman Talisman was bullied by his classmates and framed by his best friend in his high school days. One night, an incident occurred, which he rescued his ex-girlfriend from a drug organization syndicate. Too bad with his bad luck he got killed, when he opened his eyes again, he found himself in a different world? With a gaming-like system! Let’s find out what will happen to him in this world of fantasy. What if he finds out that his old classmates were the heroes of this new world and their leader was none other than his old best friend who framed him not only once, but twice? They got summoned here through a magic circle unlike him! What will happen when the system and magic clash?!!! (Yeman made a promise to himself, that the next time their path cross, he will teach them true despair.) Together with his pets, he will build his clan and rise to power!

(Check out my new HP fanfic! It's better than this one and the best on the platform!) In the Wizarding world, everyone knows what's Magic. But... does anyone know what's pure magic? Join Chris as he explores the wizarding world and realizes that... the books couldn't even describe the half of it. There's more to it than just a Tom, Harry, and Dumbledore. .... Chris is a smart and talented college student, but he had no motivation in life. What would he get after studying for hours like a dog? Money? He could find easier ways to get that. Then, fortunately, or unfortunately, he died and reincarnated to the Harry Potter world. "I have magic?!" Finally, he had found something which he could never get bored of—Magic! The eccentric genius with a penchant for breaking rules has got his hands on magic in his favorite world. He finally has a purpose in life— to explore magic to its very limits! -> Starting Point: A muggle-born orphan with nothing to call his own. (This book becomes great in the later chapters. The beginning chapters need rewriting since I was just writing for fun in the beginning so quality isn't as good as the later chapters, though they are still bearable since this book has 20k collections. The MC is a bit evil/scummy in the beginning but his character improves as his relations with the other characters deepen.) ********************************************** (Magic theory), (unique magic), (MC with high potential), (romance), (Harrypotterworld),(comedy), (Dueling), (Power Flexing) ********************************************** (P)(A)(T)(R)(E)(O)(N) Link: Patreon.com/Snollygoster (You can read ahead and take part in polls here.) ********************************************** I'll be posting this on Royalroad.com as well. Discord: https://discord.gg/TR3KKAhu9r ********************************************** ->Word count: 1000-1500 words upto Chapter 70 1500-2000 words from chapter 71 to 90 2000-3000 words from chapter 90 onwards ********************************************** Disclaimer: So, most of this obviously belongs to J.K.-Billionaire-Rowling. I'm just writing a fanfiction out of it. The cover art is sadly, not mine either. (Also, the title used to be "I Have Magic" but since the story is more about exploring this great variable called "Pure Magic," I change the name a bit. ) Also, try reading "HP: A Magical Journey" as well, if you haven't already read it. The book's great and the author helped me out a lot!

Ranulf never thought he would open his eyes again, as he laid in his own pool of blood. Unaware and ignorant of the portrayals of destiny. After the curtains of his existence collapsed, a new and fascinating life began. He transmigrated on the Pengolla—the magical world, filled with mythical creatures and cruel demons and powerful wizards—inside the boy named Kadyn. He thought he could live a peaceful life after finding out that his predecessor had no talent in magic. However, things never go according to the way we want them to be. Out of nowhere, a voice sounded in his head that shattered his world before it could take form inside his memory. [Host transmigrated successfully] [Host need to find a shop in twenty-four hours, or his soul will dissipate] Follow Kadyn on this fantastic journey, and see how he will overcome all the hardships and challenges in the future. How would he save himself and his family and his shop from greedy people? And how would he become a hunter instead of hunted after learning the harsh lesson from life? ______________________________________________ [Read all the free chapters before assuming anything about the story] ______________________________________________ The cover isn't mine. All credit goes to the artist. If the owner has any problem, please contact me, and I will put down the cover, or we can reach an agreement.

English is not my first language so please take care of me and if you find mistakes in it tell me I fix it as soon as possible. Max Winchester died due to an "accident" while reading the novel after his death he meet God who allowed him to travel through and do whatever he think best but on condition to make Protagonist's life miserable. He also gives him the strongest system [Netori system] that help him steal Protagonists Woman, Chances, Luck, etc Why does God want to make that Protagonist's life miserable? And why [Netori system] given to the max let's find out. (English will get better after chapter 38.) I don't own a book cover, I find it online, If creator wants me to change it just message me, I will remove it.

Xzavier was super one of the special forces and then transmigrated into the isekai world of magic. It was full of things he couldn't figure out. The magic, elves, orcs, alchemy... However, even in different worlds, humans were always the same. After all, human nature always remains consistent. He encountered a deadly threat, not from a dangerous environment but from his own kind. Fortunately, he had a military system. He could use the weapons he had always been familiar with. The collision of magic and modern weapons, the fierce confrontation between old and new thoughts, the sinister conspiracy and trickery... How should he survive in the strange world? ...... It is a harem novel and will arise some mature content, and I'll concentrate on some fighting plots. I like both of them, so stay tuned for more amazing stuff.