Fights
This fight is famous for the first time Natsu and Gajeel teamed up
Natsu and Gajeel vs Laxus
"I'm all Fired up now"
Natsu Dragneel
The Irrelevant BigBrain's favourite arc (and his opinion, best written arc) in the series
Tower of Heaven
The Five main members of the show (Excluding Happy and Carla)
Natsu, Gray, Lucy, Erza, Wendy
The Episode Number where we are introduced to Erza Scarlet
Episode 5 (I will accept Episode 4's ending scene as an answer as well)
The Grand Finale to the Phantom Lord Arc
Makarov vs Jose
"You don't die for your friends, you live for them"
Erza Scarlet
This character has an actual nuke on her at all times
Cana Alberona
The name of the Island that the x784 S-Class trials were held on
Tenrou Island
In 100 years quest, this episode gave the best animation Fairy Tail has ever seen, and the episode of Natsu's first time unleashing Dragon Force in the show
Episode 6
During the S-Class Trails, this fight held the lives of all of Fairy Tail's magic power on the line.
Erza vs Azuma
"If you're going to bluff then do it right"
Erza Scarlet
The Full name of Irrelevant BigBrain's favourite Male and Female characters in the show
Gajeel Redfox
Erza Scarlet
These characters are Hiro Mashima's inspiration for the creation and writing for Gajeel and Levy
Bulma and Vegeta
In 100 years quest, this episode is widely regarded as a giant disappointment in animation quality despite how major the fight was
100 Years Quest Episode 13
The fight that only happened because he wanted a cat
Gajeel vs Panther Lily
"You ain't scary, you look like some angsty kid who got into his mother's makeup"
Gajeel Redfox
Irrelevant BigBrain's favourite fight in the show
Natsu and Gray vs Mard Geer
Natsu vs Gajeel
The three members of "Team Shadow Gear"
Levy, Jet, Droy
This episode hosts the heavily agreed upon best fight in Fairy Tail (Natsu vs Sting and Rogue)
Episode 175
This fight in Tartaros is the only fight that is Manga only (Bonus points if you know what it was replaced by)
Gray vs Tempester
"Speak of your future and that shall become your will to live"
Igneel
This Arc's OST is the reason I became a Fairy Tail fan (Bonus points if you can name the specific track)
Tartaros Arc (Erza's Descent)
The Names of the 5 Dragon Parents who raises the Dragon Slayers (Bonus points if you can name who they raised)
Igneel, Metalicana, Grandeeney, Weisslogia, Skiardium
The name of the 40th Episode in Fairy Tail and the conclusion to the Tower of Heaven Arc
Titania Falls