Infinity War Iron Man replaces Thor against MCU Surtur

- Surtur as he was in the beginning of Ragnarok

- In Character

- Win by any means except bfr

Doubtful

I could see Stark taking it in a mid to high diff fight.

Small Surtur is no pushover

He has tanked the most amount of mjolnir hits to the head

Stark ain’t replicating that

Surtur took 6 hits from Mjolnir and was fine, he can just spam his Fire Rod, Surtur takes it.

Surfur eventually.

No way to tell