Equestria, Masters of Friendship!

Rainbow was cornered by the three ninjas, each in battle stances. The one with shurikans attempted to attack her, but Rainbow Dash, thinking quickly stuck her toothbrush in on of the mare's mouths, causing her to spit it out. The toothbrush hit the one with nunchucks in the face, before landing inside of the scythe wielder's ninja suit, causing her to shake with the spin-brush. Rainbow flew up to the ceiling's boards and tried to escape but the one shurican ninja got in her way. She attempted to kick at her,"Hi-Yaah!" she yelled, only to fall back down to the floor.

"Haha!" Rainbow laughed, only to be kicked in the face so hard that it shot her through the roof, and flying towards the training course. As the trio appeared again, Rainbow thought quickly like she had to earlier that day. She flipped up the golden dragon, and pressed the button.

A dummy hit the nunchuck ninja in the face, a spiked ball hit the shurikan ninja in the face, and Dash jumped on a punching bag, letting it carry her to the scythe ninja, who she kicked in the face. They all recovered quickly, and began to fight, hoof to hoof. The battle continued until Celestia walked through the doors towards the training course.

"Stop!" she commanded.

"Yes Sensei." the ninjas, except Dash said in unison.

"Wait," Dash pondered,"They're your students too? This was my final test, wasn't it?" she asked.

"Whoa, whoa, whoa, whoa, whoa! You never said anything about a fourth," a squeaky voice cut me off. "It's always three! Three blind mice, the musketeers, three..."

"AHEM," a country accent cut off the talkative mare,"What she trying to say Sensei Celestia is that the three of us have trained together, we're solid."

"Solid!? Didn't look so solid to me!" Dash accused.

"Master, what is the meaning of this?" a shy timid voice added.

Celestia began to walk down the steps,"Each of you have been chosen, each in tune with elemental properties. But first, NINJAGO!" she spun into her golden tornado, and engulfed each of the ponies one at a time. As she released them, they were each in a new ninja suit, all different colors.

"Whoa, how did she do that!?" Dash asked nobody in particular.

"Hey, look what color I am!" the squeaky ninja added.

"Wait, I'm still black, the country pony looked at her new uniform.

"Rainbow Dash, master of fire! It burns bright in you." Celestia commented on Rainbow's new title, and red ninja suit.

"Pinkie Pie is blue, master of lightning." she acknowledged the pony who was jumping up and down with excitement.

"Ha, that's not all I'm the master of, I do a little inventing, I dabble in model-building, touch of cooking, a little poetry!" she yammered on.

"More like mouth of lightning." The country pony rolled her eyes.

"Black ninja is Applejack!" Celestia announced,"Solid as rock, master of earth." she finished as Applejack showed off her skills with her silver scythe.

"Nice to meet ya!" She was an orange earth pony with three apples as a cutie mark, with her mask, Rainbow could already see her green eyes, and mane that looked like straw. "I've got yer' back, and for the record, there aint' nothin' in this world that I'm afraid of!" she bragged pulling down her mask revealing her freckles.

"Except for dragons." the timid one in white finally spoke up.

"Dragon's aren't from this world Fluttershy, I said in this world." Applejack explained.

"And white ninja is Fluttershy, master of Ice, and seer with sixth sense." Celestia said as Fluttershy nodded silently and calmly.

"I 'sense' this one takes things a little too seriously." Rainbow said mockingly.

Fluttershy gasped,"You too have the gift!?" she asked surprised, pulling down her mask. She was a yellow pegasus with teal eyes, and a somewhat shy attitude. On her flank was a cutie mark made up of three butterflies, you could already see her pink mane with her mask up.

"Haha! She's just making a joke Fluttershy! Remember what we talked about, your sense of humor?" Pinkie Pie asked with hope, pulling her hood down as well. Her mane was crazy! The mare was completely pink! Except for her blue eyes, and her cutie mark of three balloons.

"Oh, yes it was a joke ha, ha." she said in a very monotone voice, earning a sigh from Pinkie.

"Pay attention!" Celestia yelled, getting them back on track,"You four are the chosen ones, who will protect the weapons of spinjitzu from Nightmare Moon!"

"But what about my brother!?" Rainbow cut her off.

"Huh! We're saving a guy! Is he hot?" she asked giving Rainbow a nudge.

"Pinkie!" Applejack scolded her as if she was a filly, which she was on the inside.

"I just wanna know what we're getting ourselves into!" she defended herself,"Does he like pink?" she asked.

"Back off!" Rainbow threatened.

"When we find the weapons, we find your brother. It is time, we must go to the first weapon!" she yelled continuing her speech.

"Whoa there nellie," Applejack cut in,"Ya said you were gonna teach us spinjitzu!"

"Spinjitzu is inside each of you, but it will only be unlocked when the key is ready to be found. Come! My feet are tired, we will take the carriage."

"Great!" Pinkie yelled,"Now we have to find a key!?"

"Ya, I feel like she's taking us for a ride." Applejack added.

"Well if it means finding my brother, then sign me up!" Dash yelled flipping up her mask so it hid her face.

"Sign me up!" Pinkie mocked her new teammate. they were pulling their sensei on a carriage led by them! They weren't carriage horses!

"I sense this is some strange form of... team-building." Fluttershy said quietly.

"Just keep pulling!" Applejack encouraged, "We have a long way to go!"

"So..." Rainbow Dash broke the silence,"Where did Sensei find you three?"

"Lets just say that if it weren't for Sensei Celestia I don't think that we would've been seen together. I was testing my limits." she said remembering back to the day Celestia found her. Applejack had leveled an entire mountain, and right when she got to the top, she saw something really unexpected. An old mare drinking tea!?

"I was testing my invention!" Pinkie chimed in. Pinkie had mechanical wings attached to her hooves. She jumped off the top of the building, it worked! Well, it worked at first until she flew through a billboard. However the surprising thing was that there was a mare there offering Pinkie tea!

"And I was testing myself." Fluttershy explained thinking back. She was meditating at the bottom of a freezing lake. She was completely at peace, that was until a mare underwater with her scared her half to death, but with Fluttershy most things do.

"You're right, if it wasn't for Sensei, none of us would..." Rainbow began.

"STOP!" Celestia demanded. "We have arrived at the caves of despair. The skullkin must be close to unearthing the scythe of quakes. Do not use the weapon, for it's power..."

"We know, 'is too great for us mortals!' Alright girls, let's blow this party stand!" Pinkie whispered determined,"Applejack, got the plan?"

"Of course, first we lower ourselves... wait, wheres Rainbow Dash?" she wondered aloud, just to see the mare sneaking in by herself. "Let's go!" she quietly yelled to her teammates as they followed the red ninja.

As Rainbow ran ahead, the other three mares hid inside of an upside down empty mining cart, they had almost caught up, when an earth pony skullkin spotted her. So, naturally they pulled her inside of the cart and beat her up, leaving her tied up in her own bones! Once they finally caught up with Dash at the top of the tower that Samukai was in, Pinkie took the action of smacking Rainbow in the head. "What's the matter with you!?" she whispered quickly, only to be 'shhhed' by Rainbow Dash.

"They looked down through a hole in the roof,"It's upside down! They're digging in the wrong spot!" Pinkie pointed out. After Samukai left, Fluttershy threw her shurikan which was attached to a rope onto they map, then pulled it back up to get a better look at it.

"The golden weapon is near." she informed her team.

"There's no time to waste." Rainbow said flying away, and sneaking into the right cave with her teammates following closely behind. Inside of the cave the mares worked together to move a rock out of a passageway. They were amazed at what they found, inside of that cave was an amazing golden scythe inside of a decorative dragon.

"THAT IS SO COOL!" Pinkie yelled at defiantly the top of her lungs, sending out a loud echo.

"Shhh, not so loud!" Apllejack scolded wrapping the golden weapon in a blanket.

"Relax we're on the opposite side of the caves." Pinkie tried to calm her friend down.

"Just zip it, okay? Now everybody we just need to sneak out, the way out is right around the corner..." as Applejack finished her sentence she bumped right into Samukai who as if it was a reflex used his magic to reveal his daggers. The Pony's got into battle stances, ready for a fight. As the team fought they played hot potato with each other for the scythe.

As Pinkie fought, she noticed something. "Girls, it's just like the training course!" she imagined the training course there. "Over the planks, dodge the swords, here comes the dummy!" she shouted, but out of nowhere Pinkie disappeared, and in her place was a blue tornado with lightning shooting out of it!

"Spinjitzu! Pinkie, what's the key?" Rainbow shouted.

"It's just like the training course, I'm just going through the motions. This is what Sensei must have meant when she said we already know it!" Pinkie yelled.

Rainbow smirked, over the planks, dodge the swords, here comes the dummy!" she yelled kicking some skullkin but!

"HaHa, she called you a dummy!" Kruncha said like the immature former pony he was.

"No," Knuckal defended himself,"He called you a dummy!" However their conversation was cut short by a white tornado spinning towards them.

"I sense you do not stand a chance." the usually timid pony said.

"Retreat!" Samukai yelled, getting out of their before he lost more ponies.

"Yay."

"YES!"

"Haha, we did it!" the ninjas celebrated, but AppleJack made the mistake of turning around.

"Uuuuggghhh, girls?" she asked, voice cracking.

"Didn't Sensei Celestia say that there was a guardian protecting the weapons?" Fluttershy asked puzzled.

They turned around to be faced with a huge brown dragon, the color of earth. It was growling and extremely pissed off.

"Is that..." Dash began.

"A dragon?" Pinkie offered,"Cuz that sure looks like a dragon!" she yelled backing up.

"I sense we won't be able to spin our way out of this one!" Fluttershy squeaked.

They all ran away as the dragon spit earth-like fire from it's mouth, and tried to get the weapon back. They thought they were done for, until Rainbow 'saw' a way out. She took the Scythe out of the blanket. Pinkie noticed this,"No Dashie! That is a bad idea, Sensei told us not to!" she told her rainbow maned friend.

"Don't call me that!" Rainbow growled,"You also better keep your mouth shut!" She charged at the dragon, about to use the scythe.

"RAINBOW, NO!" her team yelled as she struck the ground creating an earthquake that made rocks begin falling from the roof, nearly crushing the dragon but at the same time keeping it in the same spot. The fallen rocks had also created a hole in the roof. Rainbow readied her wings, with the scythe in her mouth as Fluttershy bit onto her tail, and Pinkie bit onto her's, and Applejack somehow found a way to hold onto her's as Rainbow Dashed out of the whole in the roof, wings going as fast as she could flap them. Once they were out they all landed on the ground.

"Aww, that was so awesome!" Applejack commented

"Yes! We are unbelievable!" Rainbow offered more self praise.

"We are the best." Fluttershy added.

Pinkie Pie was bouncing up and down,"Ooh, ooh, did you see that, I was like pow, and then you were like wham, and then..."

"ENOUGH!" Celestia yelled, causing her students to turn towards her. "I told you NOT TO USE THE SCYTHE!"

"She did it!" Pinkie yelled pointing to Rainbow Dash.

"I warned her Sensei." Applejack said as if she had nothing to do with it.

"Using it was my only option!" Rainbow defended.

"What makes you think you are more important than the team hmmm?" Celestia scolded.

"They have my brother!" Rainbow Dash yelled as if it was a good excuse.

"There are still three weapons left, maybe next time you can get it right." she finished speaking, and began walking away. Fluttershy, Applejack, and Pinkie Pie followed as Rainbow latched the scythe onto her back, and followed them.

Meanwhile in the underworld, Samukai sat in his chair. He acted like a dog who had just done something wrong. "Master, I have failed you. They have learned spinjitzu, and they have the scythe."

"Good." a mature voice, much like Celestia's spoke. "So my sister was there."

"If I can gather my army, we can easily ambush them at the..."

"No." The voice spoke again,"Let them think they're winning."

"I do not understand."

"Everything is going to plan." she answered, her voice slowly turning into a loud, cackling evil laugh that could be heard all over the underworld.