eldrazi hand BLOCK

This is a deck I want to make. I need some advice though.

Creatures and others

4 x Hand of Emrakul
4 x Spawning Breath
4 x Brood Birthing
4 x Growth Spasm
4 x Kozilek's Predator
4 x Emrakul's Hatcher
4 x Nest Invader
4 x Spawnsire of Ulamog
4 x Broodwarden

Lands:

12 x forest
12 x Mountains



I think I need some duals but I don't have the money. Tell me what you think and what should I change.

good deck, but i think you should add cosi, and emaria...maybe pawn of ulamog...nikera revanent

translation: kozilek, emrakul, pawn of ulamog, nirkana revenant

yeah but you know what i mean

Well you're making mana well, but you're doing little with it.
So something like a Garruk(check the ultimate) or a Coat of Arms(nuts with spawn) or a Warp World could really swing the tide if they kill off your Hands and wardens.

Coat of Arms is a great idea. I'll think about it.
Overrun is a great card for this type of deck.
I'll add more after I finish the deck