A Weak Scholar? I’m an All-Purpose Mage with Six Forbidden Spells from the Start

[Feel-good power fantasy + invincible protagonist + lighthearted + no female lead] After Tian Qiubai got the Book-to-Power System, he devoured books, subscribing to several novels in a row, including: [Versatile Mage]: A magnificent tome from a world of magic. Read it, and countless Forbidden Curse Magic spells will be at your fingertips. [A Record of a Mortal's Journey to Immortality]: A masterpiece of the cultivation world. Read it, and the vast road to immortality will lie before you, yours to roam. At the border of the Dragon Kingdom, Tian Qiubai hovered in the air, guarding the frontier alone. Ahead, millions of monsters and evil gods had completely surrounded the Dragon Kingdom's border. Evil God: “Heh. My entire race has sealed off the Dragon Kingdom's border. And you, a mere human, think you can stop us?” Tian Qiubai: “Stop you? Are you introducing yourself?” “Super-tier Forbidden Curse Magic! Secret Art: Heaven and Earth Manifestation! Activate!” Super-tier Forbidden Curse Magic erupted. In the next instant, the winds and clouds shifted, and the heavens and earth changed color. Above the clouds, a colossal phantom of a divine manifestation appeared, reaching from heaven to earth. A super-tier magic attack, followed by a Heaven and Earth Manifestation strike. Most of the evil race was annihilated, and half the evil god's body was blown away. Its face pale, it stared in utter despair. “I have a super-tier Forbidden Curse in my left hand and Heaven and Earth Manifestation in my right.” “You can't even withstand two of my moves, and you still want to invade the Dragon Kingdom?” “Keep dreaming...”