I think Macargo’s nonsensical body temperature makes a lot more sense if it’s interpreted as an internal body temperature rather than a surface temperature.
…does it, though? It’s still hot enough to vaporise tungsten. What are we supposed to imagine Magcargo’s body is even made of at that point?
EDIT [response]: Well if the heat isn’t on the outside, it would be less dangerous for macargo to, well, exist, as it wouldn’t be on the outside where it’s hot enough to vaporize the atmosphere.
Okay but even then Magcargo’s body still has to be made of something that a) won’t instantly turn into stellar plasma, and b) can actually keep all that heat in.