I'd imagine an Assassin-esque build would be something like this:
Ranger/Warrior
Expertise: 10 + 2 (Major Rune)
Wilderness: 8 + 1 (Minor Rune)
Swords: 12
Apply Poison - Assassin staple.
Flurry - dextrous fighter staple.
Barbed Trap - used with Escape, or when no one is paying you any attention.
Escape (E) - high evasion and running away, an Assassin staple.
Hundred Blades - used with Apply Poison.
Seeking Blade - this or Sever Artery, either way.
Hamstring - stop targets from running, which I guess is what Assassins want.
Final Thrust - the coup de grace, an Assassin staple.
Keep in mind that this build will be mostly a style thing, so don't expect this build to be the super cool Assassin you or your girlfriend dreamed of.
