Clear any trash mobs away from where you plan to pull.
This is a tank and spank encounter. Pull Ach'erin, Lismat, Kanu, Eamon away from High Priest Mohnt, Kill Kanu, Eamon, Lismat first as Ach'erin will have stone skin until those three are dead first. During the fight goo's will spawn and attack random members of the group. Depending on your gear you may have to kill the goo's. Once Kanu, Eamon, Lismat are dead kill Ach'erin.
High Priest Mohnt
This is a tank and spank encounter. High Priest Mohnt will become active once the first 4 mobs are dead.
During the fight ghostly dinner guests will attack the the group. Depending on your gear you can just AOE them or kill them directly.
Hammers will also spawn, be on the watch for them as they hit hard. When the hammers spawn joust the group away from them. Do not engage the hammers as they can not be killed and will despawn on their own
Dizzina the Lulled
Once High Priest Mohnt is engaged Dizzina will begin slowly walking across the zone to your group. When she gets to the group she is a tank and spank mob. Again dinner guests will randomly attack the group during her fight but no hammers will spawn.