Here comes the most anticipated segment for comparison of these two characters i.e. John Grey vs Grim Reaper superpowers. Powers and abilities define their strength, both physical and mental. So what will happen if these two super characters engage in a fight? Here you can compare John Grey vs Grim Reaper powers, abilities, weapons and gadgets. So lets check out John Grey Powers and Grim Reaper Powers.Decide who is more powerful!