Reincarnated as the Most Powerful Magician

When you imagine being reincarnated into another world and becoming the most powerful magician. What would you choose to do? Is it still Long Aotian? He also has a bunch of top-notch equipment, and he can literally knock the air out of the sky in seconds... Or pretend to be a pig and eat the tiger? Collecting a harem? Kill the big villain! Or come to the dungeon, defeat the mobs, or protect humans? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.