After the failed invasion of Canterlot, mistrust and disharmony broke Equestria into a land of war and chaos. Nearly four centuries and all that is left is refuge of the Remnant Kingdom, the harsh War Birds, the relentless Iron Hooves, and the proud Platinum Empire.
Queen Chrysalis, in her remorse and with the aid of the Alicorn Royals and the Council of Harmony, decided to summon three heroes that had the potential to reunite the land and bring Equestria back to it's former glory.
The only setback to this plan is that the three heroes are reluctant ones.

Crossover of For Honor/MLP
Both items are owned by Ubisoft and Hasbro respectively.
Other tag should apply, but won't allow more character tags.