User blog comment:Lord Loss/Discussion of the Week: Brute Wyverns/@comment-5956315-20130116234246/@comment-5853890-20130117181149

Yea true that they have small changes, but overall they are completly the same from behavior to moves.

When you compare the regular Los/rathain to sliver/gold, there is a big difference in behaviors. Sliver well fly more and gold well unleash tail/fire ball combos.