I'm going for the Ironman challenge with all classes and sadly I don't know how lame are shammies without specialization. specially because the mana run out with just 4 lightning bolts, 2 shocks and one primal strike. all of this barely enough to kill a lvl 9 tiger and my shammie is lvl 14. if you need heal yourself you must choose.
I do this quest before with few pandaren and was hard so, I was afraid of die but reading the other comment I realize that is not necessary to kill the adds.
so, I enter into the fight, I was worried for Aysa but I see that she couldn't die so forget her and care yourself. just stay behind Vordraka.
I use one flame shock for the DOT and one Earth Shock for the debuff, just in case he turns and hit me or Aysa stop healing herself. when the first pack of mobs appear I run but I couldn't eat or drink so I return and stay hitting in the back just single melee hits (white dmg) and occasionally one shock.
the second pack was tough. I stay hitting just melee, saving the mana for healing surge. stun one of them with the racial and could kill them. I must use healing surge just one time bu I think was the lvl difference which plays in my favor (lvl 9 mobs vs lvl14 me)
the fight extend for 10 minutes so I can say, only 2 pack of mobs attack and Aysa can't die.
so if you are doing the Ironman or just are too low lvl. you can run from the fight for the first pack of mobs, try to handle the second and the rest is just wait to low the hp of Vordraka between you and Aysa, just remember stay behind him. a fight of resistance. :)