So then what are the items? Soul legos?
I'd give them two at-wills, each that do something different, and key it off a weapon.Assassin NPC ideas... I figure take the Rogue template, give them shroud & shade. Maybe setup an at-will with two sets of stats for two different weapons or something to give it that special feeling.
It also does an extra d8 per hit. So it's 3d8 if all three hit, plus 4d6 from Shroud. That's pretty good stuff.Quick optimization note:
Here's a great tactic to stack the odds in your favor when you want to use all your shrouds at once- 4 rounds of assassin's shroud followed by Shadow Darts. Shadow darts gives you three attack rolls, and it counts as a hit if any of them hit.
Since one doesn't really need to use two handed weapons, I think small size is OK anyways.1. The fact that half of your attacks are spell damage instead of weapon damages, and you get significant damage from bonus dice, means that small size assassins aren't at a significant disadvantage.