The Exceeds

Exceed are a race of cat-like beings that exist in Edolas as far back as 100 years prior to the main storyline.Happyand Carla are members of this race.Mystogan's Reverse Anima sucked the entire race to Earth Land.

Tenrou Island

Tenrou Island (天狼島, Tenrō Jima lit. Heaven Wolf Island) is the holy ground of the Fairy Tail guild. X784's S-Class Wizard Promotion Trial was held on this island.It is also the resting place of Fairy Tail's first Guild Master, Mavis Vermilion.

S-class Mage Promotion Trial

The S-Class Mage Promotion Trial (Ｓ級魔導士昇格試験,S Kyū Madōshi Shōkaku Shiken), also known as S-Class Wizard Promotion Trial, is an annual guild tradition, wherein selected Fairy Tail Mages of remarkable abilities are given the chance to become an elite S-Class Mage--a position worthy of their exceptional powers. It is comprised of several trials designed to test the skills of the candidates.

Grimoire Heart

Grimoire Heart (グリモアハート Gurimoa Hāto 悪魔の心臓lit. Demon's Heart) is one of the top three Dark Guilds that the Balam Alliance is comprised of, as well as the one commonly considered the strongest Dark Guild. The guild owes its name to the Devil's Heart,an organic device which is the source of Guild Master, Hades' immense power, kept inside the guild's airship.

Hades

Hades, known as Purehito back then, became the second Master of Fairy Tail after Mavis Vermilion. Some time later, in the Year X736, Purehito appointed Makarov (40 years old at that time) as the third Master and his successor, much to the man's dismay. Ignoring Makarov's claims that he wasn't fit for it, he praised Makarov's love for his allies and his capability to believe, claiming that he would have made Fairy Tail into a good Guild. He then left on a journey.

On such journey, he traced the roots of Magic back to Zeref, where he saw what can be called "the Essence of Magic". It is presumably around this point that he reformed his ways and became a Dark Mage, and then founded Grimoire Heart, raised and trained the Seven Kin of Purgatory, teaching them different forms ofLost Magic, in order to acquire this "Essence of Magic". It's known that he personally recruited Ultear Milkovich, nearing her while she was a child and promising her that, in the Ultimate World of Magic, the Arc of Time Magic which he would have taught her would have allowed her to travel through time and change the sad events of her childhood into happy ones.

Mavis Vermilion

She is the founder of Fairy Tail and is the first guild master, which she later gave into the hands of Purehito,her successor. In gratitude, members of Fairy Tail made her a grave on the holy island of the guild -Tenrou Island.

Sabertooth VS Fairy Tail