Enemy Troops! Throw your best ideas at me!

[Kwal]

There have been some later depictions of them like that (that weren't from the cultures which believed in that mythology) which is a reason for some scholars to assume that is the way they were imagined in Norse mythology. However reading the sagas I can't find them depicted as those greedy, ugly things (although they can be greedy and ugly, just not as a standard). Anyway this won't go anywhere if we don't bring proper sources and I can't really be arsed to go after that