So assuming that everyone hasn't seen this; Ash has a symbol on his belly-belt, a symbol that is the exact same the Overlord has when he is the Golden master. Coincidence? I hope not.
We know that the golden master had two sons; Wu and Garmadon.
Why cant it be that the Overlord had sons/daughters ,and that Ash comes from them? His element is smoke, something that seems to suit the overlord well.
So the topic is; Could Ash be related to the Overlord, and if so; what is his motive in the tournament?
Im kinda hoping to see more of him, since he lost in the tournament. I hoped he would have had dialogue, not just his "Boo" laughter. Oh well, maybe we will see more of him, and find out what his relation to the Overlords symbol is :)