Slade

Slade, by nature, is an assassin. He met Beet while he was on his three year journey, around the 2nd or the 3rd year. The two are rivals to each other, but not in an angry sort of way. Years later, he meets Beet and Poala at a port town, which later becomes the battlefield where Beet and Beltorze later fight. After said fight, he impressively holds off Beltorze from killing a weakened Beet. After a long fight, Beltorze eventually defeats him, throwing him into a building and breaking an entire wall.