egg rice dumplings for anything rt dia and up ...ur heals will thank u
at leas 65 food for endgame runs too (cheesecake, spiced fish)
housmaid/memto/alchemy aggro pot just before pull (first threaten will break it)
crit pot (memto)
crit food (houskeep or lvl 20cooking)
potion of annihilation
hero pot
housmaid pdef pot
touch of unicorn (manually cancel grace of life beforehand now...patch changed what overrides...sucks)
for GCH u will always want pdef housmaid buff over hp buff. for everything else it depends on ur pdef

(GCH has loadsa %hits n its actually easier on the heals to get u to full hp if u stay within 130-160khp, so no touch of unicorn or other hp buffs before (most) fights, just plain pdef and hero pot n u'll be fine)
if u have a 2h mage with 1recon slot in party always carry tranq powder to shove in his face if he doesnt have any.
pet n family buffs are verry nice aswell
u can drop ALOT of the pdef buffs n get HP instead if u carry a rattle n use the propper title skills - let the dps use patk n pdmg partybuffs - thats not ur responsibility, u just get hit in the face n hold aggro.
guildbuffs n party buffs are optional but add up n scale up pretty nice.
also: lucky holder title ftw.
buff rota is for me (long duration foods are already going, i use housemaid aggro pot 10min so thats included)
count down to play->touch of unicorn->4...3...2..->annihil pot->resolution->crit pot->1->shiled of valor->play+rattle/titlebuff/otherinstru (depends)
during runup phase i use hatred strike and depending on the fight/burn duration shield of discipline.
dont pull with charge, some dps say it gets them "must face target" errors. also...gives u more time to use buffs at runin