Some years ago I tried to built a Chaos Deck with that card and its Counterpart - Chaos-End Master.
That doesn't work very well, because these cards are deathdraw. With the power creep of the Meta you won't achieve advantages ...
Besides a lvl 5 Monster doesn't help you for Xyz-Summons. Searching and tributing are only a +/-0. the searched Charmer can't be used instantly in the most cases. Sphere is a Machine type and Chaos End Master a warrior type - so there's no hope to use the familiars special summoning effects.
So I think you can't reach the diversity of the other engines - with King Feral Imp and Unpossessed ....
If u try to build something, then I would recommend you the following:
3 Chaos End Master
1-2 Chaos Sphere
1-2 Byser Shock
2-3 Mystic Tomatoes