My Dark World Deck

This is my Dark World Deck. Please give me your opinions on it

Monsters: 22

3 x Grapha (Great destruction eff, easy to play)
3 x Gren (Good to take out face down spell/traps)
3 x Snoww (Good to either get Gates of Dark World or Grapha)
3 x Goldd (Generally good, staple)
3 x Silvva (Same as above)
1 x Morphing Jar (Isn't it obvious )
2 x Battle Fader (Life saver)
1 x Sangan (To get Morphing Jar or Battle Fader)
2 x Tour Guide of the Underworld (To Xyz summon Wind-up Zenmaines or Acid Golem of Destruction)
1 x Darkness Neosphere (Surprise attack ftw)

Spells: 14

3 x Dark World Lightning (Destroys both their ominous face-downs if used in conjunction with Gren)
3 x Dark World Dealings (Draw power and special summons Goldd and Silvva)
3 x The Gates of Dark World (Discard power, draw power)
2 x Gateway to Dark World (Get Grapha, Goldd or Silvva if things get sticky)
1 x Card Destruction (Obviously...)
1 x Heavy Storm (No need for description)
1 x The Cheerful Coffin (Basically Card Dectruction, but you don't draw any cards)

Traps: 4

1 x Mirror Force (Throw this into any deck)
1 x Royal Decree (Stop them from disrupting my 3TK)
1 x Depth Amulet (Good to negate attacks)
1 x Dark Smog (Discard power and destroys "resurrectable" monsters)

Extra Deck: 15 (15 because I can)

3 x Number 39: Utopia (Don't usually use this)
3 x Wind-up Zenmaines (Fairly indestructible)
3 x Adreus, Keeper of Armageddon (Will destroy everything)
3 x Number 30: Acid Golem of Destruction (Great beatstick, but you can't keep it out too long, make sure you have Goldd or Silvva to tribute it)
2 x Dborak, King of Heavy Machinery (Don't usually use this)
1 x Number 17: Leviathan Dragon (Hardly ever use this, Acid golem and Wind-up are better)

- 3 x Gren
+ 3 Brow

- 1 x Darkness Neosphere
+ a 3rd Tour Guide

- 2 x Gateway to Dark World (Get Grapha, Goldd or Silvva if things get sticky)
- 1 x The Cheerful Coffin
+ 2 Dragged Down From the Grave
+ Monster Reborn

- 1 x Royal Decree
- 1 x Depth Amulet
+ 2 Dark Smog (Disrupts nearly all competitive decks)

1 x Darkness Neosphere (Surprise attack ftw) ._. whut

@minervx Fair points, but I only have 2 tour guides because if I have already used the first two the last has no point. I may take away the depth amulet for dark smog, but royal decree really helps. I like cheerful coffin, good if my first hand is all monsters. And Darkness Neosphere is just really good imo. I don't use dragged down into the grave because it only works if all your hand is discardable monsters. I'll switch a gateway for a monster reborn though.