BIGFOOT OF COURSE!!!! or lochness monster then theres lechete
The most powerful mythical creature would most likely be a Griffin, a demon (The ones from hell), or a Fallen Angel
It is a matter of opinion which mythical being is the most mythical.
No, they are not. Yet, some may of been based of creatures in reality such as the Giant Emu in an Aboriginal story, which was most likely one of the giant emus in the Mega Forna era.There are many...
It was a dragon/lizard. Hope it helps :)