'Fairy Tail' chapter 505 spoilers: Natsu and Gray fight to the death; Mavis inspires guild
"Fairy Tail" chapter 504 saw the beginning of Natsu and Gray's battle, and it looked like a future reconciliation may be out of the question for the two former friends.
Following the events from the previous chapters, Natsu was understandably not himself at the moment, but Gray seemed to be fueled by a genuine will to put Natsu down after he found out that his friend was the infamous demon E.N.D. They gave the fight all that they've got and Yibada speculated that it may be up to Lucy to stop the fight before the two friends ended up killing each other.
A flashback to what really happened before Natsu went berserk revealed that Dimaria had been able to deal a damaging blow on Lucy, which led to a frame showing Natsu crying while hugging the celestial mage. This seemed to hint at the possibility of Natsu having done something to revive Lucy from certain death, and this may have consequently led to his magic taking control of him.
The conditions in the battlefield was also shown, wherein the Alvarez Empire seemed to be gaining ground on the Fairy Tail guild. Irene had also been searching for Mavis, who was not at all afraid to show herself. This effectively motivated the guild to keep on fighting.
"Fairy Tail" chapter 505 titled, "Trump Card," may just see Mavis unleashing the true power of the Fairy Heart to possibly give renewed strength to her guild as well as their allies. A fight between Erza and Irene may also be expected.
Meanwhile, The Bitbag also speculated that Juvia, whom Gray presumed to have already died, may also come to try and stop the ongoing battle between Natsu and Gray. Zeref might also make an appearance with an intention to mess things up and keep Natsu and Gray fighting each other despite Juvia and Lucy's efforts.
"Fairy Tail" is a Japanese manga series published weekly on the "Weekly Shounen Jump."