Fairy Tail forms an alliance with some other official guilds to take down a dark guild. Team Natsu is ordered to team up with fellow guilds, Lamia Scale, Blue Pegasus, and Cait Shelter in order to stop a group known as Oración Seis from activating a powerful ancient weapon known as Nirvana.
Oracion Seis Arc
has the following tropes:
- The Atoner: Jellal.
- Attack Its Weak Point: The legs on the Nirvana which on powered by lacrima. However they have to be taken out all at the same time.
- Back from the Dead: Jellal whom Wendy revives.
- Big Bad: Brain / Zero.
- Bishōnen: The Trimens.
- Bittersweet Ending: Brain's plan is thwarted and Nirvana destroyed, but Hoteye and Jellal are arrested and imprisoned for their crimes, leaving Erza heartbroken and Cait Shelter was revealed to never have truly existed, leaving Wendy and Carla alone. Thankfully, she made true friends during the arc and they invite her to join Fairy Tail.
- Cat Girl: Literally with Carla.
- Cool Airship: The Christina, Blue Pegasus's airship.
- Curb-Stomp Battle: Oración Seis against the Light Team on first contact, Jura to Brain later on and Zero to Team Natsu.
- Daydream Surprise: Part of Midnight's powers Doesn't work on Erza whose artificial eye can tell it's an illusion.
- Designated Girl Fight: Lucy vs. Angel.
- And no, Erza's battle with Midnight isn't one of these. Midnight is a dude.
- Face-Heel Turn: Sherry while under Nirvana's control. She snaps out of it upon seeing Lyon is still alive.
- Five-Bad Band:
- Get a Hold of Yourself, Man!: Carla to the whole Light Team after Erza is poisoned.
- Gonk: Ichiya and Hoteye.
- Heel-Face Turn: Angel's spirits after she's defeated and Hoteye.
- High-Altitude Battle: Natsu and Cobra's battle.
- High Speed Battle: Gray briefly fights Racer on motorcycles.
- Hoist by His Own Petard: Angel in trying to use Gemini to finish off Lucy. However one of their powers is to be able to read human hearts and they can't bring themselves to kill Lucy. Caelum likewise prevents Angel from preforming a killing blow.
- Cobra's Enhanced Hearing is turned against him after Natsu let's out a dragon's roar that stuns him.
- Laser-Guided Amnesia: Jellal after the events of the Tower of Heaven Arc.
- Poisonous Person: Cobra whose magic makes him an artificial Poison Dragon Slayer.
- Speed Blitz: Racer. In reality, it's actually Time Stands Still.
- Super-Powered Evil Side: A villainous example. Brain has another personality named Zero whose much more ruthless and enjoys bringing pain to others.
- Weapon of Mass Destruction: Nirvana, which has the power to change the alignment in people (i.e: good to bad and bad to good) though it also has a cannon built into it as well.
- Take Me Instead: Lucy offers her own life in exchange for Aries's freedom.
- Taking You with Me: Racer tries this on Lyon after he's beaten. It doesn't work. The anime even adds that Lyon managed to save them both.
- Tomato Surprise: Cait Shelter is really an illusion made for the sake of watching over Wendy. All of its members are the spirits of a tribe that created the Nirvana and stayed on the mortal plane until the weapon was destroyed. Once the deed was done, they finally pass on but not before giving Wendy a tearful goodbye. There's also a minor one in that Hoteye is Wally's (from Tower of Heaven Arc) brother.
- You Have Outlived Your Usefulness: Brain to Cobra after his fight with Natsu. The strange thing is he didn't actually lose and was in fact about to finish Natsu off before Brain stopped him.
- Weaksauce Weakness: Racer's power has a short range. If anything is not within his proximity then his true power is revealed and he's easy pickings for any long range attack.