Does it ever actually say that his powers are coming from the transition between universes, a la El Hazard? I recall interpreting the quoted segment as meaning that Metallia was like the White Witch in Narnia, a being of power who happened to be from another world, and since Carrot is also from another world he's basically an out-of-context problem, in that they have no idea what powers he may or may not have. Just because Metallia is god-tier, does not mean that all other travelers are as well; A single instance does not a pattern make.
I also don't recall any mention of Metallia being a Haruhi level reality warper, like Carrot is showing signs of being, if he is what is causing the Marvel infestation.
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Stand between the Silver Crystal and the Golden Sea.
"Youngsters these days just have no appreciation for the magnificence of the legendary cucumber." --Krityan Elder, Tales of Vesperia.
I also don't recall any mention of Metallia being a Haruhi level reality warper, like Carrot is showing signs of being, if he is what is causing the Marvel infestation.
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Stand between the Silver Crystal and the Golden Sea.
"Youngsters these days just have no appreciation for the magnificence of the legendary cucumber." --Krityan Elder, Tales of Vesperia.