Necro Dark World

(Didn't stopped developing Hand Antimeta, of course, but wanted to write this, too)

All "Gravekeeper's" monsters gain 500 ATK and DEF.
Cards in either player's Graveyard cannot be removed from play.
Cards in either player's Graveyard cannot be affected by card effects,
except for their own effects.

What does this card do in a Dark World Deck? Itself it does nothing, other than stopping a lot of cards in actual meta, but how does this card help the deck? It helps letting you play a card that a lot of players who played against Gravekeepers fear:

Activate only while you control "Necrovalley".
Both players discard all Monster Cards in their hands.

You realized, didn't you? Necrovalley doesn't affect our game because of no of the DW's effect target cards in graveyard on interfere with it, except for Gates of the Dark World, but it is impossible for both to be on the field at the same moment. So this doesn't disturb our game, but it helps adding some target for terraforming, but, mostly, it lets you play this awesome card. Destroy opponent's hand while triggering your DW's effect? Yes, please. It's like a micro WU loop that kills only monsters, no matter how many they have in their hand, and let's you play your cards at the best.

This is just an idea, but I think it will work good.
The deck should look like something like this (just a skeleton)

3x Grapha
3x Snoww
3x Broww
3x Beiige
1-2x Trance Archfiend
1-3x Tour Guide

2-3x Necrovalley
3x Gates of the Dark World
1-3x Terraforming
2x Royal Tribute

You'll need to add other draw cards, as you can see this is just a simple skeleton with a lot of free slots, basing on this you can build your own Necro Dark World (looking for a best name, maybe all attached is better, "NecroDarkWorld", but still don't like it).

Well, I'm going to study, wrote this fast article between 30 pages of History and 50 pages of English (I live in italy, english is the second lang in school, third is French/Spanish), Stay Tuned, I could write something else today (don't think so, however, more probably tomorrow)