Planeswalker's Guide to Reality Fracture

Driven by traumatic memories of past multiversal threats, the Planeswalker Jace Beleren has taken extreme measures to remake existence. After suffering catastrophic defeat in the Meditation Realm, Jace pieced himself back together without his empathy, excising every part of his personality that questioned his mission. The self-proclaimed Theorist now aims to erase fundamental evils from history to construct a peaceful Echoverse.

A lingering, discarded fragment of Jace's original psyche - representing his honesty and self-awareness - remains trapped inside a mental prison. This original persona reveals that Jace's attempt to erase ancient horrors came at the cost of his own morality, turning the former champion into a cold dictator who wipes memories and strips away free will to complete his grand project.

To stabilize his artificial reality, the Theorist is merging his Echoverse onto the existing plane of Arcavios. The process has stripped away historical threats like Nicol Bolas and the Phyrexians, replacing natural mana confluences with five harmonious elder sphinxes. However, rearranging multiversal history has created severe physical paradoxes across the landscape.

Surrounding the central campus is the Eradia, a distorted wasteland spanning nearly a hundred miles. This chaotic zone is infested with predatory creatures drawn to heavy magical use, including multi-legged Mage Hunters and pack-hunting Witchstalkers. Cadets who break rules are routinely assigned to clear these dangerous reaches as punishment.

At the heart of this rewritten plane sits Hexhaven Academy, the Echoverse counterpart to Strixhaven. The Theorist reshaped the campus into a sprawling, gravity-defying tower centered around a massive leyline confluence. Halls fold into floors, staircases warp spatial logic, and Vryn-inspired architecture manifests throughout the structure due to the Theorist's leaking subconscious memories.

Hexhaven functions as a strict military academy where cadets train to become combat mages and defenders. Students undergo grueling mental and physical discipline designed to quiet their minds, unintentionally leaving them vulnerable to telepathic intrusion. First-year cadets rotate through basic magical studies before facing annual induction exams, where the plane's founder sphinxes select candidates based on combat performance and tactical problem-solving.