Accidental Archmagus (OP MC + Isekai went wrong)

Orphaned at six and terminal at nineteen, Levi's life on Earth was already ending when a strange voice offered him a different one. He's promised adventure, great powers, and a noble mission. What he gets instead is being stuck in the Void—a place where time has no meaning, and magic has no limits. Decades later, now a mage beyond comprehension, Levi breaks his dimensional prison all the way into Ellinaria, only to find out that his new home is long since saved. Both from the Cataclysm, and, apparently, from himself. Now Levi has simple goals: find his imposter (if they exist), clear his name (stealthily), and resist the urge to solve every minor problem with overwhelming magical violence. The first two actually sound achievable.It's the Levi Cult's plans for a new Calamity that might complicate things. Then again, who's better to deal with cultists than the man they worship? p.s. This is a rewrite and improvement upon Level 0 Archmagus I previously published.