General Grievous - General of the Droid Armies #015/257

Epic Action: If you control 6 or more resources, deploy this leader. (Flip him, ready him, and move him to the ground arena.)

Action [Exhaust]: Give a Droid unit Sentinel for this phase. (Units in its arena can't attack your non-Sentinel units or your base.)
[Deployed Leader Unit]
On Attack: You may give a Droid unit +1/+0 and Sentinel for this phase.