Solo:
A/Me
Shadow Form [E]
Arcane Echo
Shadow of Haste
Dark Escape
Jagged Strike
Wild Strike
Death Blossom
Critical Strike
For only 170 attribute pts:
Shadow Arts: 12+3+1
Dagger Mastery: 9+1
Critical Strikes: 6+2
For only 185 attribute pts:
Shadow Arts: 12+3+1
Dagger Mastery: 10+1
Critical Strikes: 6+2
For 200 attribute pts:
Shadow Arts: 12+3+1
Dagger Mastery: 10+1
Critical Strikes: 7+2
I dont know the run, but ill learn it soon, and as soon as my sin is able to try this out ill do this and video and screenshot it btw, so heres wat to do:
Run from granite citadel to the cave (using dark escape, and shadow of haste kinda near portals, maybe consider swapping a skill for Shadow Refuge instead. Make sure ur at least 3 times the aggro bubble away from the cave entrance. Use Shadow of haste, wen u get almost within range of mobs use arcane echo, then use shadow form, use the attack skills, renewing shadow form wen needed. wen the 2nd shadow form is just about to go, use dark escape to teleport out and wait for skills, hp and energy to recharge, then go again, until u cleared the whole cave

Dual:
both need this build:
Shadow Form [E]
Arcane Echo
Arcane Mimicry
Shadow of Haste
Dark Escape
Jagged Strike
Wild Strike
Just run in (using tactics as before) target different imps, just before ur last shadow form is about to run out, use arcane mimicry on ur partner, to get 1 last use of it, then use dark escape after that final shadow form. enjoy!
Credit to darkrawlinson for the origonal build, but me for the idea of just how to use it, have fun and make lots of cash from IDS's!