Survey Corps, Fly! (An Attack on Titan Crossover)

Armin woke to the sound of scribbling.
Hanji was already up and drawing some kind of scientific diagram and drinking some coffee.
"Spike made ya some breakfast, hope you like Applejacks!" Hanji went back to her drawing

In their transformations Armin had become a white Unicorn with a golden mane and tail. While Hanji became a brown unicorn with darker brown hair, she still had those glasses too.
"Hey Armin! I was wondering if you would help me and Hanji with an experiment after breakfast?" Twilight Sparkle, the lavender Unicorn from before, asked him.
"Um...Sure?"

Exactly 10 minutes and 21.69 seconds later...

"So what we're aiming to do is to create the ultimate Titan killing weapon. Hanji has given me a very... Detailed... Description..." Twilight flashed back to the hour of non stop Titan info.

Armin whispered into Twilight's ear.
"I understand your pain... Eren had to bear it for almost an entire day..."
"Yikes."
"Hey! What are you two whispering about!?"
"Oh... I was just...Um..." Armin attempted to cover up what he had said, but Hanji cut him off.
"Were you confessing your love for Twilight but were too embarrassed to say it out loud?"
"WHAT."

Twilight went bright red.
"W-we've only just m-met..."
"I still ship you too! What would your ship name be? Armlight or Twimin?" Hanji was showing the symptoms of going into 'Hanji daydreams and usually talks to you for like an hour about one thing you probably aren't interested in mode.' Twilight quickly changed the subject.
"Aaaaaaanywaaays. The weapon we had in mind was a kind of blade that can extend beyond normal reach like The Monardo from PonyBlade Chronicles!"
"And we make this how?" Armin had no idea what a 'Monardo' looked like.
"We do SCIENCE! And use a bit of magic BUT WE MOSTLY DO SCIENCE!" Twilight exclaimed with obvious excitement.

Exactly 1 minute 13.37 seconds later...

"OK now just pour this onto the metal and it should become reinforced, stop when the whole thing is red."
"Ok?" Armin did as he was told, spilling a bit on the table.
"Well now I have a patch of reinforcement on my table. Do you know how hard that is to get off?"
"No, the only stains we get are titan bloodstains and they just evaporate."

Twilight stared at Armin for a second, I don't think blood is supposed to do that... she thought to herself.

Hanji arrived and the three Unicorns worked tirelessly on the weapon.

As the sun began to set Levi arrived with an outfit for Armin, he changed into the strange red and black clothes and picked up the now finished Monardo with his magic and swung it through the air.

"It seems to work..."

Twilight was EXTREMELY excited, she loved PonyBlade Chronicles and seeing Armin dressed as Shulk...
"Try activating it, and shout 'I'm really feeling it' when you do it!"

Armin was confused and slightly scared, even more so when Twilight produced a camera from... Somewhere... Armin eventually did as he was told however, the sword opened up to reveal a longer blade of pale blue light, Armin swung the weapon through the air and yelled,
"I'M REALLY FEELING IT!"

Twilight had a small fangirl fit as Hanji watched on with glee,
"You really like Armin don't you!" Twilight snapped out her fangirl fit,
"N-no! I just really like PonyBlade Chronicles and think the main character is awesome!"
"Uh-huh." Hanji sarcastically agreed. "I think Levi is awesome but do I fanagasm like that? Eynope."

Twilight blushed and teleported back inside her house, Armin and Hanji following her.