With a thud Deathwing landed outside of ponyvile with a fllash of magic he returned to his pony from. As he walked into town he saw rainbow dash with her pet turtle as it hit random stuff. However Deathwing noticed it sleeping. 'Winter must be coming.' The dragon said.
However for Rainbow Dash tank falling asleep was something wrong. "Tank are you ok?" She asked.
"Its almost winter If I had to guess." Deathwing said as he walked up to the rainbow mained pony.
Rainbow turned to hi. "Whats that got to do with it?" She asked.
"Hibernation you know sleeping until spring?" Deathwing answered her. He knew they could control the weather but the animals still knew when the seasons changed.
"Come again?" Rainbow asked.
"Just what I said. The little guy looks like he's about hit the hay for winter. I'm no animal expert, so if you want to make sure, go to a vet." he suggested, looking down at the tortoise. "What's that on his shell, by the way?"
"This? Twilight made and put a spell on them, so Tank can fly with me."
"Why a tortoise anyway? I thought you were all about speed?"
"I can tell you later." Rainbow flew a few feet up, holding Tank in her forelegs. "I better let Fluttershy check up on him. I don't wanna have him hit the ground, while we play hockey?"
"Hockey? Didn't you hear what I just-"
"Later!" Rainbow zoomed out, leaving a rainbow trail.
'Aaaaaaaaand there she goes. Can't belief it's Winter already. Well, almost.'
The locals had been rather accepting of Neltharion after a few weeks. Especially a unicorn with the name Lyra Heartstrings. She especially loved to examine his human form and even made a happy dance on her table, once it was proven that she was not "crazy". Her mad grin suggested otherwise. Not to mention her obsession with hands.
Deathwing learned about the mirror world, but Twilight didn't want to tell Lyra about it. As he asks for the why, she told him that she didn't want Lyra to cause a scene. One day Twilight asked Lyra about a hypothetical situation of finding a whole world filled with humans. It was awkward to say the least.
Back to the topic at hoof, Deathwing didn't actually know how ponies changed the seasons. Maybe he should ask Rainbow Dash? She was the head weather mare, which made her the best source of information.
'She's going to visit Fluttershy. Wasn't planning anything today anyway.'
Deathwing walked to Fluttershy house. As Deathwing came to Fluttershy cottage he saw Rainbow Dash flying out of the cottage. Deathwing wondered what she was doing. He followed her to find her asking Spike. "I'm a Dragon he a tortasios." Spike asked her.
"Really Rainbow?" Deathwing said as he came into the room. "Why are you so afraid of him going into hibernation?" he asked. Rainbow Dash didn't seem to answer. "What do you both know you're dragons..." She paused at Neltherion. "Dragons and Dragon god." She took off with the tortoise.
"Dragon god?" Deathwing asked in confusion.
"Well you kinda are the planet." Spike answered.
"Ah." the older drake nodded understanding. "From what I get, Rainbow Dash isn't too happy about Tank going to hibernation, huh?"
"You bet. She almost acts like he's going to die. Pretty stupid, considering tortoises live longer than ponies." Spike pointed out. "But then again, she was really looking forward to spend winter with Tank."
"Hmm. Oh well, I'm sure she'll realize that Tank is going to hibernation, whether she wants it or not."
"That's going to break her heart."
"Oh please." Neltharion rolled his eyes. "He's just going to take a long nap. As you said, he's not going to die or anything. Oh right, I just remembered, I wanted to ask Dash about how ponies change the seasons."
"I think you're lucky. They should prepare the snow clouds and everything else by now." Spike said, walking towards a window. There he pointed with his tiny arm towards Cloudsdale, where you also could see pegasi working in the distant. "You should find her over there."
"Thanks Spike. I'll see you later."
The pegasus of Cloudsdale were soon visited by Deathwing. "So this is how you create the weather?" he asked. Ponyville was scheduled for winter and the pegasi were moving it into place with other ponies helping clean the land up. Deathwing looked out too see clouds being destroyed by a rainbow blur. With his wings at the ready he had to go have a talk with the pegasus. He heard her singing a song and decided to stop her before she could go much futher. With his claw raised a cloud moved out of her path as did the others. "What do you think you are doing?" Deathwing asked as he landed on a cloud. He looked down to see Tank in a little patch of land surrounded by snow. "Really?" He asked yet again.
Another team of pegasi came up with more clouds. "You can't stop winter. There's only one of you and dozens of them." He answered using his magic to cause the clouds he held to drop off their snow. He took back off right as Ranbow Dash looked at Cloudsdale.
"Oh yeah? Watch me!"
"Rainbow Dash!" But she already was on her way to the cloud city with Tank wrapped around one of her front legs.
"I swear that mare is going to drive me nuts one day, to the point where I try to create a world ruled by a single dragon race."
Spreading his wings, he went after Rainbow Dash, hoping to catch up to her. It was futile. Against the fastest pegasus on the planet, unless he wanted to destroy half of the city, there was no way he could catch up to her in time. Another problem made itself present, when he actually reached the city. He had no bucking clue where Rainbow went or what her plan was.
'Bucking? Those ponies are really getting to me.'
Deciding that the best kind of action would be to get an overview of the city, hoping to spot Dash in the process, the dragon flew up. He noticed very soon the flaw in his plan. Cloudsdale was big. Not only big, but it was also gorgeous. Neltharion had a hard time keeping his head on the goal.
'This is getting me nowhere. There're literally tons of pegasi everywhere. Okay, focus. Where would Rainbow Dash go, if she wanted to stop winter from happening?
...
'I have no idea how ponies do winter in the first place.'
A sudden commotion caught his attention, as lightning came out of a particular large cloud building, which had some kind of huge exhaust pipe coming out of it. Pegasi were flying around, some in panic, others trying to get the situation under control. The drake thought about intervening, but his lack of experience with weather magic would be counterproductive.
In the end, nopony needed his help. The weather team managed to get the situation under control and bring winter (and a pony and a tortoise) in record time to Ponyville.
Deathwing, seeing Rainbow Dash and Tank flying towards Ponyville in the gigantic snowball, snorted. "Oh I watched Rainbow Dash. Brr, it's really cold up here. Well now that that's out of the way, I better get myself some hot chocolate, before Sugercube Corner gets crowded."
Just as predicted there were lots of ponies inside the shop, caught off guard by the sudden winter breakdown. The cakes had been taken off guard, as they expected this kind of rush on the next day. Luckily for them everypony was satisfied sitting at the tables and the couple could take a quick breather.
Deathwing himself was leaning against the counter, just enjoying himself, when the door opened and six familiar ponies stepped in. Rainbow Dash was good at faking being her usual self, but everyone who knew her or had enough life experience, could see that she had been a little shaken.
When they arrived at the counter, Pinkie walked into the kitchen and coming out of it with an apron a minute later and six more hot chocolates.
"Feeling better now?" Deathwing asked.
Rainbow let out a sigh. "Yeah."
"Still, you have to admit, you overreacted. It's not like he's going to die or anything."
That got him a glare from everyone.
"Sorry." he shrugged, finishing his own drink. "But seriously Rainbow, there are things in this world no one can stop. No matter how much they wished they could."
"Heh, you almost sound like you know what you're talking about." Rainbow commented offhandedly.
"I do Rainbow. And I'm not looking forward to the funerals."