Greed Saber/Sever/Whatever can be very good against a IAD at some distance, but try with all your might not abuse that... Stun Dipper in AC is crap, only use in combos or punish some obvious attack.
Not rely too much in his VT (shoryu) because is not so safe against some options, and have a CRAPPY lag. Against a IAD is Ok, but IMO is better try to launch a 6P or 2HS.
After all, know how to be agressive without lose your focus.