Wizard: My Inheritance Comes from the Future

I am Rogal Guilliman, former Undertaker, now apprentice wizard. I have collected a tombstone, with the unknown history engraved on it and the future of the wizarding world buried underneath. According to the epitaph, the discovery of the plane gate drove wizards to join the wave of conquest, and civilization once climbed to its peak, but eventually it was destroyed due to greed. Thousands of years of accumulation of knowledge turned into debris and slept under the tombstones. I am the only one who can dig it out. Does qualification determine the upper limit of achievement? After optimizing the meditation method for thousands of years, genius is just the threshold for meeting me. Is lack of resources limiting growth? The barriers between alchemy, potions and phytology have long been broken down, and resources are being accumulated as fast as stepping on the left foot and the right foot to the sky. Does spell structure affect power? It's time for nuclear weapons to give the world a small nuclear shock. At the beginning, I advanced this knowledge and power just to slightly reverse the direction of the future and find a way for myself to survive. But over time, those wizards started calling me... Future.