the Bonecasters in the Mausoleum and through out are nasty and do a Stun for like a minute, really great to have two decent healers for this, we used a Druid (who did an excellent job) and myself the 105 Shamaness
on the step
Stop the hosts before they infect too many of the creatures of the Grounds 0/1 (The Grounds)
the name of the mobs is: infected host
the end name is Goliath Thornhost he is a BIG frog, and has Line of Sight aggro, Summons regardless if you did damage. He despawns and leaves a "thorn frog" to be killed then he re aggro s. I think it was three times this happened, not positive as I was Healing the two tank types and re-slowing the giant frog every time he popped back in.
we had a crack group doing this and there were several deaths also included in the mix was a spawn of fifty frogs to be Kited and picked off to be killed, before we started searching for the INFECTED HOST's
/g the person making the potion gets the rod, if you Fail to stop the infection from spreading across the instance you fail.
I will ask Evill to flesh out the parts I am missing, She put together the group. and everyone in the group did their best, did not give up because fo a a few (several) deaths. and we got the task complete.
PS now to get the stink of those frogs out of my armor
PSS the potion can be clicked on dry land sixteen times to get the rod and void completing the task.