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

Tarkin is good at higher levels but it isn't due to his damage. Using his aoe removes tm and lets the other team go less. This keeps your higer damage toons alive longer. His other special reduces the damage of the other team and adds debuffs which adds tm when thay are cleansed or expire. That also allows your higher damage toons to go more often in comparison to the other team. That is his role. He can deal massive damage if you hold off his aoe but the tm removal is typically more valuable.