Hey kids! Guess what? I’m not dead and I’m still doing Berserk stuff!
 
Anyway, was originally gonna go with Griffith for this but…Skull Knight needs more love. And before you ask, yes: This is meant to imply the events of Berserk were indeed apart of the MLP universe history. Albeit, a very dark and horrifying chapter of it that has been stricken from the records.
 
Still, at-least this explains how Celestia beat all those threats one thousand years ago.