Fantasy: I Can Win Every Battle at the Beginning

[Travel] + [Invincible Flow] + [System] + [Prehistoric] + [Infinite Flow] Qin Feng traveled to the ancient world and activated the invincibility system. [Ding, host, the opponent's combat power is 1000000000] OK, let me hit him. [Ding, host, under your attack, the opponent's combat power will instantly be 0] I know you are all awesome. But I'm invincible, so you all get out of the way. I'm not just killing monsters and leveling up. He will never learn from ordinary time travellers. Now that he is invincible, of course he has to do something big. Hey-hey! With my intelligence, I must play a big one.