Fairy Tail Episode 151 English Subbed Episode Title:Sabertooth.Episode Description:The Legion Platoon is tasked by Zentopia's archbishop to retrieve the missing pieces of the Infinity Clock and seal them again. Before embarking on their mission, they visit Fairy Tail and make amends with the guild for their previous hostility against them. It is later discovered that Fairy Tail has lost their title as the strongest guild in Fiore to the Saber Tooth guild over the past seven years. Two of the strongest wizards in the guild include a pair of Dragon Slayers named Sting and Rogue, who are obsessed with fighting Natsu Dragneel and Gajeel, respectively. Meanwhile, Makarov brings Gildarts to their abandoned guildhall and shows him Lumen Histoire, a light that Makarov says is Fairy Tail's greatest secret. Makarov then tells Gildarts that he has been chosen to become the next master of Fairy Tail.