Board Thread:General Discussion/@comment-2055856-20160630203101/@comment-28684741-20160704175456

Mystic Monkey wrote: I think StC Chaos Emeralds "sorta" went the same direction. The comics say there is seven emeralds but when they're kept on the Floating Island, the green Chaos Emeralds increase it's size and manages the six other emeralds which orbits around it, thus the green chaos emeralds is the Master Emerald.

Don't recall the green Chaos Emerald ever being broken though other than one point in the comics there were 13 chaos emeralds until twelve of them fused to form the seven emeralds.

They Grey Emerald was left out because it was regarded as the controlling chaos emerald. The one emerald to rule them all, I guess.