Thornmarch is a level 50 trial that requires the player to defeat Good King Moggle Mog XII and his Mogglesguards. The trial requires a full party of 8 players with average item level (iLevel) of 54 or above. To unlock the trial, players must be on the quest You Have Selected Regicide and have completed the quest Hail to the King, Kupo. Players can start the questline by talking to Vorsaile Heuloix at New Gridania (x9,y11). The difficulty of Thornmarch is between that of Garuda (Hard) and Titan (Hard). Players will receive 15 Tomestones of Philosophy and 12 Tomestones of Mythology for the completion of trial.
There are 2 phases and a kill priority for all of the moogles which is the same in both phases. The priority is BLM > WHM > BRD > THF (Thief) > RNG (Ranger) > PLD > WAR > King (this is flexible depending on the group composition). You want to put King towards the end because the King spell Momento Moogle/Mori will do partywide damage based on how many of the minions are alive at the time. If you mark moogles in phase 1, the marks will stay on them in phase 2. So have someone mark them BLM(1), WHM(2), BRD(3), THF(4), RNG(5), PLD(X1), WAR(X2).
Moogles will pop up as a function of time. At the start, only the PLD is on the Battlefield. 20 seconds after engaging, the RNG and BLM enter. 30 seconds more, the WHM, THF and WAR join. And 40 seconds after the BRD pops in. Once the seven have popped, you have roughly 60 seconds before all seven respawn and group together to summon the King.
Whiskerwall Kupdi Koop (PLD): Uses Spinning Mogshield, a circular AoE attack around him. Also charms players.
WoolyWart Kuqpu Kogi (RNG): Sits in a corner of the battlefield randomly targeting a player. The targeted player will be identified by a large floating Crosshair above them. After a short delay WoolyWart will use Eagle Eye Shot, a five hit ranged attack that may deal considerable damage.
Pukla Puki the Pomburner (BLM): Casts Flare which has a large range and needs to be stunned or silenced. Ring is a big orange ring on the ground. King gets meteor when it dies. Avoidable. Somewhat responsive to hate.
Furryfoot Kupli Kipp (WHM): Casts holy and cures moogles. King gets holy when it dies. I think holy does less damage the further you are away from it, but not sure. Doesn't respond to hate.
Pukna Pako the Tailturner (THF): Randomly targets a player, then running up and stabbing them.
Ruffletuft Kupta Kapa (WAR): Aoe cone that does some damage. Decent hitting auto attack. Large Aoe Steel Cyclone as the fight goes on and some moogles die. Simply get out of the large circle if you're not a tank. Circle is black with a green outline. King gets this when he dies. Responds to hate.
Puksi Piko the Shaggysong (BRD): Has an attack bonus song to other moogles and a damage song that does aoe around him. Somewhat responsive to hate.
For the fight, have everyone try to kill PLD before the other moogles pop. Avoid the circle stun that it does. If the other moogles pop, go for the BLM while MT finishes the PLD off solo. RNG and BLM pop next. MT will finish PLD and start to work on RNG who will go to the outside and sit there. The rest of the party proceeds on the kill order with the OT trying to tank as many of the other moogles as possible and keeping them off of healers. MT will pick up the WAR and keep soloing the RNG while positioning the WAR so that his overpower is oriented outside of the circle. Ignore the WAR for this entire phase. Just keep him overpowering the outside and solo the RNG. The group will continue killing moogles and finish the RNG off just in time for them to summon the King. Only the WAR should be alive when King is summoned meaning that Momento Moogle will do very little damage. If more than the WAR is alive by the time they summon, you will take more damage, with 3 moogles up being a wipe.
MT gets hate on King as soon as he comes up (you can attack him while he's charming momento moogle) and pulls him to the very edge. MT will also provoke the WAR and keep shield lobbing/tomahawking/flashing both while kiting in a semi-circle fashion around the edge. This is all the mank tank does the entire fight. Keep the WAR and the king out of the BRD songs and keep running back and forth along the edge of the circle path. The rest of the party proceeds along the kill order with the OT saving his stun for BLM flare. The whole fight is a damage check. The king will do momento moogle in phase 2 to check how many moogles are alive and if too many are alive, you will all die because your damage was too slow. As long as the king's line attack and the WAR's aoe are as far from the rest of the party as possible and facing the outside, you should have no trouble winning.
Good King Moggle Mog XII Loot:*
*Good King Moggle Mog XII weapons are item level 75.