Drawings of Big AF Swords - Who Needs Physics?

Claymores, broadswords, greatswords, longswords… The names aren’t exactly original, but on pixiv, you can find every type of blade under the sun and then some. But what about swords so massive that you start to doubt the reality of physics?

Cloud’s (from Final Fantasy VII) is probably the most iconic, but Saber (from the Fate series) is also skilled with big blades. What do you think of the other designs below?