Will Save World for Gold

[Hamste]

Is it possible that he has a hidden damage reduction (Is DR a thing in 4e?) and physical wounds deal less damage or regenerate quickly? For example Odi had resistance to lightning but his damage was similar to the amount Ardon took (I'm not sure how much resistance Odi had though I would guess 5 or 10 if it is like 3.5 and Ardon could have just high rolled and the resistance is not shown or Ardon could have low rolled and Odi's resistance was factored in). If that is the case that would explain why he could be defeated by an explosion and lightning strike but many smaller attacks didn't phase him as much.