Power Level @ Lower Blackspires

My guildie is running his level 70 warrior (Arms Sword) in full of arena gear with his 50 Shaman. So I tag along for free power level with Gemstar 48 Mage, and Azzhat 49 Shaman. Being in the power level receiver, I was easily falling asleep on my keyboard. But I am just tired most of this week. I did manage to participate with strength and wrath of air totems. Mana totems for me and healing wave from my Resto Shaman. I was hoping to get level 50 so I can use Earth Shield, but I had to log at 2:30 am.