User blog comment:AnonymousAK/Demon's Royale/@comment-4933386-20150107095742

It's definitely Tartarus; first they don't use Magic so... their power never depletes(I assume) and the power each Tartarus member possess will naturally overpower them. One Eternano Explosion from Tepesta is enough to annihilate the rest.

Torafusa's poison water thing is also enough to gradually do damage to all of the enemy.

Sayla's control over mages is more than enough to defeat the rest with their own magic...

However... Fairy Tail did defeat all of them... and they're all mages(excluse Gray) so there could be a chance... but slim.