Sargeras was originally a Titan tasked with keeping the Burning Legion at bay. He was eventually corrupted by his continued proximity to the demons and instead freed the demons and became their lord.
Some lore has been retconned. Originally the Eredar were demons and were part of corrupting Sargeras. Now they say Sargeras corrupted them to demons after his own transformation (in fact, a lot of lore was retconned just to explain the space goats)
Saurfang, however, is much easier to explain. He's Chuck Norris re-incarnated as an Orc.
Real lore answer: he was the leader of the offensive against Ahn Qhiraj. He is also the brother of Broxigar, a character from the War of the Ancients trilogy by Richard Knaak. Essentially pure badassitude in corporeal form.
-Bellanear Cyeos
The Alabaster Seal
Guardian of The Ivory Tower
Gavin S.
