Highly recommended for focus training at 80 and really does take <5?? mins to go from 0 to hero

If you find your not a lvl 80 - the mobs may have some colour so only pull a few at a time - and remember, as it's a solo instance you won't have anyone to heal or bail you out should you get into trouble

TBTH - any good grey dungeon is a good place to work some DEF (but it will be slower than harclaves I have found) - so let's say your lvl 50 - zip in BB and grab a group of grey gnolls, if your doing ok, grab another, etc etc

The beauty of going into a dungeon is you can bring your group and get heals or whatever BUT like I mentioned, it is slower than harclaves PLUS you may look like a bot team as you may have 5 guy basically standing round doing nothing with a whole herd of gnolls having a whack-fest on 1 char

Another point - especially on non-tank chars - go into your home town and buy the lowest level but fastest speed tin? or wood (whatever) item you can (think pierce is a tin spear? or a dagger, you should already have capped sla) - so for instance, a mage would go into town and buy the lvl1ish? wooden maple?? batons??? and a tin dagger - The idea is, if your standing there whacking gnolls or whatever, you might as well work your crush/slash/pierce as well (i.e., autoattack but fast to get the max benefit) - and of course, you don't want to kill the mobs (hence the use of lvl 1 items) as the longer they last the more skill-ups you get

On the point of longer lasting mobs - take off all your dmg shields, and proccing stuff - you do want the grey stuff to last or you'll quickly run out of mobs - and also, if you do need to heal, get 1 healer to do it and just cast the first (lowest) heal you can and leave big spaces as you don't want all the mobs to race off onto the healer until your ready for it