You need to stop him at all costs. Remix to save the universe from his ever-growing power. The scythe he's holding is Celestium's scythe. What if I told you this little guy right here is the literal embodiment of evil?
The Zenith from Terraria (at least the vector sprite) made by @witherstorm555 The music is from some sort of Roblox game called "Tower Defense Simulator" or “TDS” If you're wondering what that abomination of a sword is in the top left, then I'll answer your question. That's @numberblockclub's sword.
