Eratosthenes

The legendary Math Titan, said to have formed each of the planets throughout the universes with each their own circumference. Eratosthenes was noted to have betrayed Pythagoras by cheating in a bet pertaining to how many times the Earth would have to go around the Sun in 4500 years by using a calculator. Eratosthenes was then banished into the Math Arena, where he had to fight for a thousand years until his exile was over. After coming out of exile, Eratosthenes waged war on all of Math creation and saw the Math Defenders as a threat. So Eratosthenes manifested his abilities and influence into Math Dude, where havoc was brought upon the entire Slopeverse. But little did Eratosthenes know that him creating Math Dude was allowed by Archimedes on purpose. Apparently Math Dude's creation would pave way for at least someone in the universe to rise up and stop him. And whoever that person may be, Archimedes would know for sure that that person is in fact the Math Defender of Earth and the Chosen One to save all of reality. But none of this was to Eratosthenes's knowledge, so he made nothing of it.