Monster explanation (Written by Luciliano):
Dimension Conquest Carriage
Sam, a carriage-type Undead that has conquered space. It is not conquest in the literal sense; in this case, ‘conquest’ refers to the fact that he can travel through space freely as if he has conquered it.
Even the sturdiest fortress is meaningless before this Undead. The only things that could effectively stand in his way are another Undead of the same kind, a master of space-attribute magic, or a holy barrier that prevents any Undead from passing through it.
However, there are a limited number of beings capable of facing a Rank 11 Undead, and he is likely capable of breaking through the average barrier. And it is exceedingly unlikely that any Undead of the same kind exist.
As always, he is relatively weak when it comes to pure strength in combat, but it is almost impossible to avoid his ‘Charge’ attack performed as he suddenly appears from his alternate dimension. And because there is no way to tell what is inside the carriage, if one ever finds themselves being pursued by him, I would recommend surrendering immediately.
In terms of his capability in transport, which was his original purpose, he easily surpasses even the largest of sailing vessels, and the interior space is marvelously livable. A comfortable temperature and humidity is maintained inside the carriage at all times, even if he is traveling through freezing lands or volcanic regions.
Even if a Fire Dragon were to use a Breath attack on him, those inside the carriage likely wouldn’t feel any of its heat… though Sam himself would feel the heat and pain as he burned, so I cannot recommend testing this hypothesis.