Moff VERY low damage, needs a re-work? Is he for defense only?

Tarkin is quite good. He reduces others damage and crit chance and thats 2 extra debuffs for Vaders saber throw. You can put him in Thrawn lead when another Vader is faster and than reduce everyone's damage and than aoe tm reduction. Its a quite nice character which also is later on extremely tanky. I have 70% efficiency with him as he scales damage and defense with this stat. I use him in TW and TB. He is a strong character.