Sorry it took a bit, been rather busy.
But here it is
You will need the following skills for this to work..
Dolyak Signet
"Watch Yourself"
Bonnetti's Defence
Enraging Charge
Sprint - not neccessary but handy to make an escape if you screw things up
Vengeful Weapon
Vengeful Was Khanhei (elite Rt skill)
Generous Was Tsungrai
You need a decent -5 dmg (20%) shield with 30hp
Also a weapon, Spear or axe or even a sword, with +30hp and hopefully a 6 or 7 vs dmg mod equipped on it.
The skills you should have
Tactics 12 or 13 (use whatever runes and armor to get it e.g. +1 tactics helmet and +2 rune)
Strength 9 or 10 (again use runes to get it like 8 skill and +1 rune)
Restoration Magic 12
And you can add radiant insignia's for the +6 energy, very very handy but not always needed but helps just the same
Now head into UW, you will get the quest from that annoying lost soul (many many months of hating that guy lol)
Now you will have to agro and pull the Grasps that appear, usually 3 or 4, if the aatxes follow you can use sprint to run (good time to use sprint) to somewhere far and the aatxes will return to their position and hopefully the grasps will follow. (or you can use a bow even without being a ranger just to pull them)
Once they get to you, you can do this.
Dolyak Sig - then attack with your weapon you need the adrenalin for Bonetti's Defence. (needs 8 adrenalin) and since your tactics is up you should get 10 seconds of 75% chance of blocking attacks and +5e each block.
But since we arent really interested in energy, we are interested in Vengeful Was Khanhei (VWK just to make it easier to type) right after or shortly after the Bonetti's defence.
With 12 restoration magic, you will get 10 seconds of stealing 29 health per mob, which is very handy with 3 or 4 hitting you. So you can steal from 87-112 health per hit.
So just repeat, with Dolyak Sig, Bonetti's Defence (should have a nice supply of adrenalin coming in) and VWK. If you time it right and repeat as VWK is about to end, then you should keep it going and soon kill each one.
After you kill the groups of grasps, you can get outside, and aim for the smites.
Smites as people know is the source of ecto's they are what you want.
But...... Always attack them somewhere safe where you know there is no patrols, especially from the Cold Nights (they are evil) with this build.
Once in a safe place just repeat the same combo as before. If you do get a cold night appearing near you, use sprint to get out of there. Then reget the sprites and carry on killing.
You can if you wish take resillient weapon instead of sprint if you want to go for the Cold Nights, even throw in a Signet of Stamina if you just want to go nuts and hope for the best lol
You can also take Mend Body and Soul if you dont want to take the healing sig, that way you dont have -40 armour.
Try a few times, it may cost you a few plat to go in, but your mostly wanna go in for chests and ecto's anyway so I would suggest the sure way of doing it.
But as I said the build is versatile so go ahead and add your fav choices, even "To the Limit" will work if you cant get Enraging Charge.
This build should work on other types of mobs non-UW. But make sure they dont do anything over 30 dmg or it will overwhelm you.
Feel free to add ideas to the build.
EDIT: Dont forget you have other skills on your bar too you can use
