Truth be told, Star Swirl the Bearded wasn't quite sure when everything went wrong. Sure, he could trace it back to magical mishaps going out of hand (just about anyone could at that point), but there was also that pesky problem of a hubris nagging at the edge of his mind that begged the question of whether this wa Shia fault. It wasn't so much as a hubris than a deep-seated persistence on his part to always be involved in just about every aspect of whatever he focused his attention on, to the point that several gods of order would roll their eyes and share sharp words with one another.

He had just entered through a hole in the fabric of space time (said fabric is said to be satin in texture, though some arcane physicists compare it to silk, and this has caused a great divide in the space time and tearing field of studies), eager to witness how the world has changed since he had last left. Since Star Swirl had not yet unlocked the then thought to be impossible spell of immortality (he did, however, figure out a wide range of necromancy arts that unfortunately didn't yield the highly sought after immortality without the putrid odor part butting in), time travel was about his only means of observing future events.

Also because psychics are bumpkis hogwash with no magical proof while time travel was completely sound and dependable... kind of... sometimes... there was still the off chance you could be eaten by a dinosaur.

Luckily this time that didn't happen. However, Star Swirl was just about wishing it had, for what he was seeing was almost infinitely worse than an end by the prehistoric jaws of death.

Celestia and Luna were duking it out underneath a solar eclipse while the land before was cascaded with the ruins of their battle. The sky was a burning shade of crimson while ash clouded the air. Fireballs fell like hail to turn Equestria into a ravaged pockmarked corpse. This was truly the end of times, a battle of epic proportions between two incredibly powerful forces, and Star Swirl had walked right into the middle of it.

Also, he may have been slightly... responsible. Just a bit, really.

"Huh," Star Swirl finally said, just as the royal sisters collided in a shower of magical energies. "Wow. Honestly should have seen this coming."

Usually Star Swirl was much better at planning out these sort of things. For the wendigos and the entire original pony homeland freezing into a new ice age, he had his best (currently alive) apprentice accompany the princess into Equestria to discover the power of love... or something. He was sketchy on the details, but it had worked. Then with Discord he had "conveniently" planted the Harmony Tree (which was quite heavy, as his hernia liked to remind him) right nearby the sibling Princesses' castle. Then for Sombra he had placed hints and clues for the Princesses to learn from so eventually they acted first before that maniacal despot could have covered the world in darkness. Heck, even for Tirek he had prepared himself by becoming buddy-buddy with the fiend's own brother, which won Equestria the battle once more.

Each and every time Star Swirl the Bearded prepared for the inevitable dangers of the future, he had come out on top. Except, well... this time, that is.

"Luna was always the unhinged one. The mare most likely to crack and turn completely psychotic," Star Swirl admitted to himself. The signs were certainly there. Withdrawn, dark, into some weird punk music, a strange appreciation for gothic architecture, and not to mention all that pretentious edgy poetry. "But that just doesn't explain why she's doing all this now..."

"When I'm done with you, sister, all of Equestria will be forced to endure my night forever!" Luna screamed in a crazed tone, which echoed across the wartorn lands.

Star Swirl nodded. "Oooooh, now it's beginning to fall into place. Luna is feeling unappreciated and is taking her frustration out on her sister." He paused. "Along with trying to cause the apocalypse. Hmm. Go figure."

Star Swirl glanced back at the magical space time hole he had just exited through earlier.

"Ooooookay, this was obviously a bust. Note to self: never send the princess to boarding school ever again."

He departed, with hope that another future without his meddling would turn out for the better.

Or at least one without boarding schools.