Some changes: changed to Vydar, increased 20-sider roll by one. Here are the updated powers that can be copied into the OP. We still need to come up with the name, but these guys seem like they are ready to go.
ASSASSINS (Name to be determined)
General: Vydar
Planet: Eberron
Species: Human
Common Squad
Class: Shadow Assassin
Personality: Tricky
Medium 5
Life: 1
Move: 5
Range: 1
Attack: 3
Defense: 2
90 Points
SHADOW STRIKE
If a NAME Assassin starts its turn unengaged and on a shadow space add 1 to that NAME Assassin's attack this turn and that NAME Assassin may attack 1 additional time.
ONLY A SHADOW
If a NAME Assassin is attacked and at least one skull is rolled, roll the 20-sided die. If you roll a 1-12 roll defense die normally. If you roll a 13 or higher, you may, if possible, move that NAME Assassin up to 5 spaces and ignore all wounds. NAME Assassins do not take leaving engagements when moving with Only a Shadow and must end it's movement on a shadow space.
BLEND INTO SHADOW
The NAME Assassins start the game with up to 2 shadow tiles on their Army Card. If a NAME Assassin ends its movement on an empty land space, you may place a shadow tile from their Army Card on to a space they occupy if the shadow tile fits normally on that space.