While watching television one evening, Wong received an unusual visitor in the form of Bats the ghost dog, who informed him that Strange needed his help. Wong vehemently refused at first, but Bats relayed that Hell Lord Mephisto had claimed Las Vegas and the Avengers. After hearing what Strange’s hubris had gotten him and the world into, Wong decided to help. Using sorcery, he called upon the Midnight Sons, including the Daywalker vampire slayer Eric Brooks, AKA Blade, monster hunter Elsa Bloodstone, the living weapon Danny Rand, AKA Iron Fist, the cloaked avenger Marc Spector, AKA Moon Knight (at the time going by Mr. Knight), and the Houngan Supreme Doctor Voodoo, the legendary Ted Sallis, AKA Man-Thing, and the Spirit of Vengeance Johnny Blaze, AKA Ghost Rider. Once Wong got them all into a room, he convinced them to go up against Mephisto and a platoon of his Ghost Riders, which also included a corrupted Strange.
While the Midnight Sons battled the possessed Avengers, Wong protected himself from the evil Strange until Bats possessed him to keep him busy. Meanwhile, Wong had plotted with Blaze to usurp the throne of Hell while Mephisto was away, so when Mephsito killed Blaze, the former Ghost Rider took over. Not too pleased, the demonic Mephisto opened up the ground below them, taking Wong down to Hell. Man-Thing caught him, but Wong insisted on being let go. Strange watched helplessly as his friend plummeted to the fiery depths, but Wong landed safely thanks to Blaze, the new Lord of Hell. Wong asked another favor of him: to restore Strange’s faith that others would stand by his side. Blaze bestowed upon Strange all the Avengers’ power to help him defeat Mephisto. When the former Hell Lord seemingly gave up, he actually made his escape and Wong returned to the land of the living. Wong and Strange reconciled, and Strange apologized for letting Mephisto get away. However, Wong assured him that Blaze was on top of it.
When a mysterious and magical “accountant” stole the Ancient One’s powers, forcing him back to the mortal plane for help, he also kidnapped Wong, Zelma, and their ally, the arcanologist Pkzkrfmknna, AKA Kanna, as Earth’s collateral. Captured in the accountant’s office, they were soon liberated by Strange. The accountant revealed that Strange had racked up magical debt while drawing magic from the Faltine—the race of monsters led by Dormammu and they arrived on Earth to collect their price.
The Faltine were gigantic, causing massive destruction across New York City. Strange zapped the trio back to the accountant’s office, with instructions to find something unknown. Suddenly, Zelma found the Ancient One’s knowledge of magic in a bauble. They unlocked it and taking in the Ancient One’s centuries of knowledge, the trio entered the fray against the Faltine. Wong grew to monstrous size and battled the enormous Faltine, employing his martial arts skills and taking them down.