i like the idea of using telflammar shadowlord. even better if flaws are allowed
human shadow walker template
1 rogue blind fight, dodge, mobility, light adaptation
2 rogue
3 rogue telling blow
4 fighter power attack
5 fighter cleave
6 assassin spring attack
7 sword sage (shadow hand maneuvers, including shadow jaunt)
8 telflammar shadowlord
9 telflammar shadowlord craven
10 telflammar shadowlord
11 telflammar shadowlord
12 sword sage improved initiative
13 sword sage
14 sword sage
15 ?? improved critical
16??
17??
18 ??
19??
20 ??
take the other teleport maneuver, get some items that give you teleports, and you can get multiple full attacks in one round and you have a build in "dark side"