Shadow Spark Optimus Prime figure incredibly intricate space deco and purple eyes inspired by the movie As we now know it looks like Optimus maybe infected by something called the shadow spark as the description from the recently shown toy confirms above. Does this mean we can now count out a nemisis prime/another character turning into evil prime counter part and prime simply gets infected by this shadow stuff instead ? So what is the shadow spark? Is it a hate plague substance that makes the infected users spark turn evil/shadow ? Do the Quints/creators posses it and use it on Optimus ? Is it a liquid substance that has to be injected into the transformer ? Or is it a gas form that infects transformers upon breathing in ? Will prime just find it in space or on the plant/thing that goes near the moon in the trailer ? Is it directly related to unicron? Anybody any ideas ?