Demigods Almighty
I know that having character's appearance change when they have different items equipped would be very difficult. for example, QofT would look a little strange with just the addition of boots, or Rook may not quite fit into a suit of armor. But what about having an Almighty look for each of the Demigods. Once they reach level 20, they get a new, more powerful look. For example, Erebus would get a helmet and a larger mace, rook would be 10% larger still and have spikes on his knuckles, QofT would be in a black lotus flower with even more vines protruding, UB would leave green foot prints wherever he walked... Something to show everyone you have maxed out your character and they are all powerful. It wouldn't necessarily have any game affect, but would just look cool.