I actually have a great f**king idea bro
In a fanmade Pokemon game I'm gonna create someday (hopefully) it shows that there have been fused eeveelutions that are like that because they adapted to their environment. And depending on which of the versions you play (wire or blast), you could either find a Sylceon or a glaveon naturally cryogenically frozen in part of a Glacier, technically making that creature 12 billion years old
