Poor Mephisto is going to have to take another loss here. He’s definitely not at a level where he can hope to challenge Dabura. Dabura was holding his own against SSJ2 (Debatable) Gohan and he can certainly take out a planet with ease. Mephisto wouldn’t have time to blink before Dabura would already be unleashing a killer combo on the demon. This is definitely a one sided fight, but now Mephisto can have a little breather before he returns to the blog. Dabura wins.