True, save your TP for big spells. Used Smash Axe and stunned Stone IV.
I just want to say that we did this yesterday and the Diaga on the mob behind the house trick does not work so scratch that idea completely. I tried it in every nook and cranny behidn that house and it never worked. Here is a Strat that WILL work. You need close to a full party for this. Last night we did this with
75WAR/NIN
75DRK/WAR
75WAR/???
67PLD/WAR
50WHM/BLM
65RDM/???
All DD build TP to >100% on the mobs outside the house. They will not link the mobs inside the house or the NM. Once everyone is up to >100% and the mobs outside the house are dead, have your Mage stand outside the house and target one of the normal mobs inside the house with "Sleepga" or whichever works for you. Needs a be an AoE sleep though. At the same time, the DD's should bum rush the NM and beat him down. Stun stun, WS stun just go crazy on him. After he is dead which should be quick with all that TP built up, take out the lessers in the house that should be slept. Dont save TP on these guys, all three will repop again before the NM does. Once you kill them, rest and relax. Enjoy the inside of that house because its not often you get to see the inside of it.
The Farkiller, Champion, and Dreadnaught will pop inside the house. I didn't see any Dragoon's pop in there, only outside the house. Build TP on the last two and wait for the NM to pop. He will always pop on his chair in that room every 30 minutes. Rinse and repeat.