From the mini-comic 'The Obelisk':

Who wants these cool Obelisk warriors added into MOTUC?

Personally, I always thought the speech balloons mixed up 6-Arm-Or and Rep-Tail between good and evil so I could never work out who they fought for! The bad guy wants to rescue people and the good guy wants to use his tail to destroy!!

Anyway, these could be neat additions to our collections, either as more fully fleshed out good and evil warriors or even just as random evil beasts fighting for Skeletor.