surturs fire

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Comic-Con 2016: Thor: Ragnarok Includes Surtur and Fenris - IGN
We saw some proof of concept video and art from the now-filming sequel.

Marvel Studios screened some concept art and proof of concept footage as well as a behind-the-scenes look at Thor: Ragnarok, which just recently began filming in Australia. In addition to quick glimpses of Hulk in his battle armor and the god of thunder with close-cropped hair and war paint, the conceptual footage also revealed two more adversaries that Thor and Hulk will face-off against in the third entry.

We got a look at the Fenris Wolf, a being inspired by Fenrisulfr of Norse mythology. In mythology, the Fenris Wolf is prophesied to devour Odin. It is also said to be the offspring of Loki. Oh, Loki, you dog!

The footage ended with Hulk launching himself at Surtur, the gigantic fire demon who helps bring about Ragnarok, the destruction of Asgard and all things. Inspired by the being from Norse mythology, Surtur made his Marvel Comics debut in Journey Into Mystery #97.

Finally, the concept art featuring Jeff Goldblum’s nemesis Grandmaster indicated the character without his signature blue skin and white hair. He looked more like, well, Jeff Goldblum in outer space.