Original letter here.

Dear Rainbow Dash:

You did pretty well for your first time trying to sabotage an entire season. Do you mind if I join you next time? I could teach you some of my favorite tricks!

Sincerely, The Grinch.

Dear Tank:

At least your master loves you. Mine just drags me around while bitching about how much he hates the whos and their Christmas carols and whatnot.

Sincerely, Max.

Dear Twilight Sparkle:

Tell those stupid inbred ponies to get their act together. A town that shifts its seasons whenever they want to is not a town that will be seen positively by the general populace.

…Or don’t. Canterlot will look good in comparison if you keep screwing up.

Sincerely, Princess Celestia.

Dear Dad:

You dumped me at an orphanage so you could become a pro hockey player?!

…I really hate you right now.

Your eternally-resentful daughter, Scootaloo.

P.S.: I hope you enjoy your father’s day present. It’s a box full of twittermites trained to attack anything that smells like you.

Author's Notes:

I originally planned to write an entire parody of the Grinch's song, but I couldn't come up with anything good.

Secondly, sorry for the lack of Game of Thrones references. I don't watch GoT.

Finally, for those of you who can't remember the episode, that last letter referred to this guy: