Shanghai Avengers Billboard May Show Thor's New Yellow Lightning
A new promotional billboard for 'Avengers: Doomsday' in Shanghai has sparked fan speculation about a major power upgrade for Thor, per /Film.
The billboard shows Thor wielding Stormbreaker surrounded by what appears to be yellow lightning. This marks a departure from the blue-white electrical energy the character has consistently used in previous MCU films and even in the 'Doomsday' trailers themselves.
Fans and outlets like /Film note the color shift could hint at the introduction of the Odinforce, a potent Asgardian power unused by Thor in the MCU so far. The speculation is fueled by earlier promotional art from July 2026 that also showed the hero with orange-yellow lightning.
Using the Odinforce in the comics carries a significant cost: the user must enter a deep, recharging state known as the Odinsleep. If the billboard is accurate, this could set up a dramatic sacrifice for Thor in the film.
The billboard also features Robert Downey Jr.'s Doctor Doom, Florence Pugh's Yelena Belova, Chris Evans' Steve Rogers, and James Marsden's Cyclops. Marvel Studios has not commented on the fan theories regarding Thor's power change.
'Avengers: Doomsday' is scheduled for release on December 18, 2026.
