Each Final Fantasy has a different take on the series' reoccurring elements. Fenir for example is often portrayed as a wolf, but is also a Motorcycle in the FFVII universe.

Ragnarok is commonly a sword, but is an airship in FFVIII and an accessory in FFX-2 and it is a great axe in FFXIV. The way one Final Fantasy handles an item has no baring on how another Final Fantasy will, because they exist in separate universes.