Equipment is vital for survival in Nightfrost, obviously.
The best armor is Magic Plate armor (arm 17), it can only be worn by knights.
The second best is Demon armor (arm 16), it can be worn by all vocations, but offers no benefits to per say a druid, sorc, or paladin in the skills area as do some others.
The best helmet is the Golden helmet (arm 10), you can get it from the Annihilator.
The best legs Dragon Scale legs (arm 11).
Best boots, are either the Boots of haste for speed the equivalent of what your speed would be if you were 20 levels highers. Or Softboots, which are considered by many to be far better than boots of haste as they rapidly increase your mana regeneration rate by 100 mana per turn.