A/N: Hey guys and this is chapter is going to focus on Natsu and the guy's battle, also his name will be revealed this chapter. Yay! Also I might upload the first chapter of a new fanfic tomorrow so if you're interested you can go check that out.
Disclaimer: I don't own Fairy Tail or One Piece, Hiro Mashima and Eichiro Oda does.
"Thunder-Flame Dragon's Roar!" Yelled Natsu as he sucked in a lot of air and then let it burst, with a powerful breath attack fused with lightning and fire.
The man dodged barely and ran towards Natsu, and said "Heat Wave!"
The man got really close and slashed his sword very hard and sharp, the air pressurized as the magic heated the air. A flying slash attack with a red tint in the air came rushing towards Natsu. Natsu tried to dodge but his right arm and leg got burned but thanks to his magic he didn't feel as much pain as he should.
"Ah ow ow ow ow!" said Natsu in pain.
Natsu's thunder-flame dragon mode was off and the man was rushing toward the pink haired dragon slayer.
"Magma slash!" said the man.
Natsu dodged barely by an inch. He then got up and ran fast toward the man and said "Fire Dragon's Iron Fist!"
Natsu punched the sword and yelled "Fire Dragon's Talons!" As Natsu kicked the side of the sword once again.
Natsu jumped back avoiding a slash of the sword as he heard the man say "Magma Slash!"
"Not bad, Salamander." Said the man.
"Yeah you too, but I'm not going to lose to someone who hurt my friends to the point they blacked out." Said Natsu angrily.
"Fire Dragon's Wing Attack!" yelled Natsu as he summoned fire strings and rained them down on the man.
The man predictively slashed Natsu's attack in half since magma is hotter but before the man could react Natsu slashed the man with his "Fire Dragon's crushing claw" attack.
The man fell back and Natsu saw this as his chance to attack the man more so he did. "Fire Dragon's Iron Fist!" yelled Natsu as he punched the guy in the cheek.
Natsu kept punching him but the man kicked him off and said "Magma Slash!"
Natsu used his breath attack and the man slashed the roar in half and Natsu was in his Thunder-Flame Dragon mode.
Natsu "teleported" behind the man as he was in mid-air. "Thunder-Flame Dragon's Brilliant Flame!" yelled Natsu as he combined his left hand and right hand and created a huge ball of lightning and flame. Natsu then threw the ball at the man, it hit. Natsu could hear a yell of pain as the attack engulfed the man.
Natsu landed and went out of his thunder-flame dragon mode and looked at the burned body of the man he just defeated. Natsu lied down and was panting heavily and that battle took a lot out of him.
"I wouldn't be laying down if I were you." Said the man.
Natsu jumped up in surprised and saw the man standing with his sword over his head.
"Magma Tornado!" yelled the man as he moved his sword into a circular motion.
The sword was burning a bright red color and the air formed flames and the sword's magical energy formed magma as it expanded into a long cylinder.
Natsu tried to dodge but the pain he took earlier slowed him down and the attack hit.
"AHHHHHHHHHHHHHHHHHHHHHHHH!" yelled Natsu as he fell and rolled around a bit.
"Why does it burn so much!" asked Natsu to no one.
"Because magma is hotter than fire and even lightning fused flames aren't hot enough to overpower it." Explained the man.
Natsu stopped moving and fell stiff.
Natsu then started to get up.
"I won't lose... I won't lose for the sake of my friends!" Shouted Natsu struggling to get up.
Natsu slowly got back up. He stumbled a bit but kept his balance.
"Tell me, why do you treasure your friends so much?" asked the man as he watched with an amused smirk.
"Because friends always get your back, they cheer you up when you're sad, and they always make you feel like you're not alone!" shouted Natsu.
"They're just friends, and yet you speak of them like their your own family." Said the man with the same smirk.
"My friends are my family! They are the only ones who I can laugh with, spar with, eat and drink with! And anyone who hurts any of them is going to get a serious ass kicking! Yelled Natsu as he glared at the man standing fully now.
"Oh really, and why do you depend on them so mu-? said the man before he was cut off by Natsu.
"Thunder-Flame Dragon's Roar, Firing Hammer, Talons, Wing Attack, and Sword Horn!" yelled Natsu as he landed all of the hits successively really fast.
"Dragon Slayer Secret Art: Crimson Lotus, Exploding lightning Flame Edge!" screamed Natsu as he made a circular motion as his arms made a circular shape as a bright flame-lightning circle thing engulfed Zero and exploded upon impact.
The man hit the ground with a loud thump as Natsu stood there watching him to see if he would get back up. He didn't.
Natsu fell back from exhaustion and panted heavily.
"My name is Zero." Said the man.
"Huh." Replied Natsu.
"Why do I need to know that?" asked Natsu looking at his opponent.
"Because I would like to be part of your guild, Fairy Tail was it." Said the man.
"So can I join your guild?" asked the man.
"Sure!" said Natsu with a smile.
Yay we have an OC character, didn't expect that did ya. Well anyway I just want to say that I meant to have Natsu eat the guy's magma and unlock like magma dragon mode or something, but I decided that would be too overpowered. And his name is Zero, sorry I'm not good at coming up with names. So anyway the next chapter I'm going to reveal why he needs magical energy or why he was such a creep. Well anyway guys thanks for reading and peace!