Mira

So basically this f%@$er is insanely f%@#ing hard to beat of you dont have the dbs expansion (i dont). The first time you unlock him to fight he's lvl 100, and you have to beat every empowered enemy to unlock him, but the second time he's lvl 250, idk abt the third time cause i havent gotten that far, but he can do up to like 1B damage in a single attack depending on your def lvl. He's the hardest enemy in the base game, no doubt abt it, 10× harder than kid buu and i played the entire game on hard mode