Yu-Gi-Oh! GX: The Uncrowned King

I transmigrate to the world of Yu-Gi-Oh! GX with a card System. I won't be a deadweight teammate, and I'll enjoy an exciting life of dueling (◎`·ω·´)人(´·ω·`*).

PS: The story may include, but isn't limited to, the following: 1. Future cards, such as Cosmic Neos. 2. DIY cards and custom cards (if you don't like it, don't read it). 3. The plot may diverge from the original. 4. I can't remember some details from the anime. Of course, I'm doing all of this on purpose...