The Incredible Hulk, Vol. 1 #350 (1988)

Before The Fall
The green Hulk is none other than the robot first seen in the Eternals, and it is under Doom's control. He sent it to distract the Thing so the real Hulk could regain his strength and regroup for combat, and when he gets back into the fight, he does it with intelligence.
Release Date: 1988