Wyrmlord Zaos  

Wyrmlord Zaos is a nice easy fight if you have two things.

1. Positioning. There is a nasty frontal and some knockback, so have the MT get him into a corner, and everyone attack from the side to avoid the tail.
2. People on the ball. Periodically, the Wyrmlord will emote that he is crushing the main tank. Everyone must right click the Wyrmlord and chose the option to help rescue the player. If this doesn't happen, the tank is not likely to survive due to huge damage it causes. If the tank goes down, have an OT pick up and reposition the mob.

Apart from that, burn the adds first, tank and spank.