Doom has no context for any of this and he hates that more than anything. He hates having to rely on Misha, adopted family of his enemy, because that's only one step removed from getting help from Richards himself and he can't allow that.

"Getting past it without fighting would be preferable, but I don't think I'll melt from just this if I have to face it," he says, having complete faith in his metallic body's ability to handle heat. Johnny's flames had to reach maximum heat for him to even start to melt, so what could this thing do to him?