Skoll is a large blue saber worg Spirit Beast that is a rare spawn, appearing every 8-16 hours in one of three know locations of Storm Peaks.
Skoll is notable for being the first Spirit Beast to not be feline in looks. He is also known for the lightning effect that crackles around his body.
He's an exotic pet and certainly one of the most spectacular pets a hunter can get, looking great in 'regular' and in prowling mode. Like all Spirit Beasts, he requires the 31 point Beast Mastery talent to tame.