My guild is working on Horridon 10man. And well to be honest it's been a brick wall for us.
I'm having such an issue with mana on the first gate it's rather sad. The single&mass dispelling is really hurting. Up until this point I haven't had much issue with mana management. Our best attempts so far have been getting to the third gate. Even by the second gate, I'm running on fumes then the poison crap starts adding up fast, really painful. Our resto shaman usually has to drop mana tide for me by the start of the second
Our raid make up is 5 dps, 2 tanks, 3 healers for this fight.
One tank hauls Horridon to the far side of the room and tanks him by himself (paladin who cleanses his debuff) along with a holy paladin.
The Resto shammy and me stay with the second tank and group, moving from gate to gate.
Here's a link to my priest http://us.battle.net/wow/en/characte.../Emerus/simple
Any suggestions on how to better handle my mana with the dispelling on gate 1? I don't want to slag my shaman wingman but I do notice that I usually do about 80% of the dispelling each try...