What's this Pokémon?

I want to improve my description game so I'm going to explain an interaction with a Pokémon and see if it's clear to you guys which one I'm depicting

Plus it might be a fun guessing game for ya!

<[♡♡♡]>

Journal Entry 21:

I barely survived today…

I'm still unsure how I am alive…

I was traversing through a blizzard on Mount Coronet, the weather more powerful than usual and even unnatural, occasional flashes of purple lightning blasting through the storm

It was terrifying and I had no way to tell my direction, all forms of navigation useless

I was on the verge of collapsing, the pressure becoming too much

Right as I hit my knees, however, it all suddenly stopped

I gasped in the calm fresh air, extremely confused by whatever just happened

It's like none of it was ever there

I looked around at my surroundings, looking for any sign that whatever that was wasn't in my head

As I scanned the surroundings, I found something…

Unnatural

It was a Pokémon, that's for sure

Majestic and beautiful, fur a deep silky grey

Except its mane

That was a bright, sparkling white, almost exactly the same as the snow around us

The tips of the long, flowing hair was tainted red that was the exact same shade as blood

Glowing golden eyes glared into mine, seeming to burn with an unspoken rage

It didn't move

It barely even breathed

It seemed to be calm

However, I felt nothing but terror in this thing's presence

I was overcome with an emotion that wasn't my own

Pure, destructive, relentless, savage rage

This creature…

Whatever it was held such resentment that it practically oozed from it, emitting an unseen but overwhelming aura

I could barely move

It was too much to bare

The monster raised a long, sharp claw and pointed it at me, purple energy swirling from its feet and gathered at the outreached limb

It let out a long, furious howl, the sound so loud and imposing that is scared me into action

I stumbled back to my feet, even using my hands to help me move faster

I didn't know what this Pokémon was but I knew its hatred

One more second there and it would have ripped me to shreds