The Dark World.

https://i.imgur.com/FFxkWd6.png
Should I add Silva and Goldd?

I personally don't like Silvia and Goldd.

Throw in Fabled Raven and Trance Archefiend.

Also, Mind Crush going to three, so run three

Take out the two One Day

And I would personally main Triple Smog and side Double Light Imprisoning.

Just my two cents though.

my older brother is playing dark worlds and his deck is awaysome and he has 3 silva and 3 golds and he easy xyz them to lvl 5 xyzs and their atk is good too

-3 One Day#
+2 Torrential
+1 Judgment (Warning if you want it instead)
I would go -3 Gates to DW +3 Upstart (the quick not the field)

Side Rykos. Nat Beast will say hi next format with Smoke Signal at 3.
-2 rohibition
-2 Chain Dis
-2 System Down
-2 Pachy
+3 Ryko
+2 Skill Drain
+1 DDV
+2 Dust Tornado