Dirge didn't scream as expected when the power line began electrocuting him - he laughed as he jammed his swords into Stark's shoulders sharing the pain through the conductive metal katanas.
Yes!!! More pain!!! I love it!!! But I'll share some of it with you!!! Suddenly Dirge's systems overloaded as lights flickered across Boston and he didn't realize Stark's suit was grounded against blasts of Thor's lightning so aside from the stab wounds this was nothing to Iron Man and he stood for a moment after the power box stopped electrocuting him before spitting synthetic black blood which leaked from his faceplate which opened revealing Dirge's partially skeletal face - the original flesh was long gone and replaced with synthetic skin and muscle.
As Dirge staggered he pulled his katanas out of Tony's shoulders and sheathed them before collapsing. He was still laughing albeit weakly. I see. You're the stronger of the two of us for now. But make no mistake I'll never stop coming after you. I will rise again and again just like a dead man walking.
As SHIELD agents started massing Dirge's eyes flickered and his mouth continued to bleed. I envy you, Tony Stark. You live for the moment. You see, I'm not alive anymore but I'm not dead either. Where you live, I simply exist. My body is my tomb, my existence is my coffin and my stolen life, my memories that are beyond my reach? They are my hell. Don't become...like me...Live...boldly...
And with that Dirge lost consciousness, his body finally shut down as he laid on his back in the rain with a peaceful smile as the faceplate closed.