We've been raiding a few weeks again already, and I have to say. It's not going too bad! My 10man has so far killed Halfus, Valiona and Theralion, Magmaw, and Omnotron....and we have made a couple of decent attempts at Ascendant Council; which I am confident we will kill upcoming weekend.
So I figured that I would share some tactics.
However, since there is quite some guides out there already I figured I would take a different approach. This will be more of a reminder guide, and a quick overview. Not so much a full-blown step by step fight guide.
Halfus Wyrmbreaker 10man
Composition: 2 tanks, 3 healers, 5 dps (yes, I know some say it can be done with 2 healers, but you shouldn't need 6 dps so why risk it?)
Halfus has 5 dragon type pets, and the proto behemoth. He will chose 3 each week to assist him, and the behemoth is always active.
Drakes in order of importance to free and kill:
Storm Rider – Shadownova on Halfus. Releasing the Storm Rider reduces the cast time of Shadow Nova and makes it possible to interrupt it.
Whelps – Killing the whelps significantly reduces Halfus’ damage and increases his damage taken.
Nether Scion – Halfus gains 100% attack speed when this drake is active. Releasing the Nether Scion will reduce Halfus’ attack speed, hit chance, and damage by 25%.
Time Warden – When released it roots player periodically, including the fireballs from Halfus’ protodrake. Causes fireballs to move much more slowly.
Slate Dragon – When Slate is active Halfus will put a mortal strike debuff on your tank reducing healing taken by 5% each time he hits a target. This ability stacks. When Slate is released it stuns Halfus periodically for 12 seconds.
Unless you have the top 3 to deal with you can free the most important two from this list and then ignore the third while you kill Halfus. If you do have Storm Rider, Whelps and Nether you will have to free all three.
At 30% he will start doing a pulse that will stun the entire raid. Each pullse will come ticks of 3. Make sure to interrupt shadownova still if Storm Rider was one of your dragons.