Fairy Tail/ My Little Pony crossover

Mavis Vermillion, Fairy Tail's First Guildmaster returns to her final resting place, after declaring war with Zeref at the conclusion of the Grand Magic Games.

Little did she know that she would be swallowed up in a swirling rainbow vortex and taken to a land that closely resembles her Guild's ideals.

Now in Equestria, Mavis prepares for another adventure, because the whole premise of Fairy Tail is about going on adventures.

WARNING! CONTAIN'S SPOILERS FROM ANIME AND MANGA!

Fate Stay Night/ My Little Pony crossover (re-written)

Zelretch was in need of entertainment and realising that his students don't properly understand the concept of Friendship, decides to test them so they can learn.

Except the only dimension that places friendship above all else happens to ruled by a Diarchy and is called Equestria. Which is a world inhabited with intelligent Equines.

With Princess Celestia already having a student learn about the "Magic of Friendship", what is so wrong about dropping off two extra students?