You can have up to 4 air elemental, not 8.
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If you make a leveller deck, put levellers or leveller related cards.
Cant work with eldrazi spawns, cause tokens dont go to the graveyard. read mtg rules
Please rate my leveller deck http://www.mtgvault.com/ViewDeck.aspx?DeckID=67399 thanks.
Hey there, i don't own any kozilek, and Id prefer 4 ulamog than anyother one in my deck. Destroy a target permanent can save you in a game. My deck isnt based on those big cards, they sure finish the job :p, When i have much spawns and a garruk i make them all +3`+3 trample and finish of everyone. With this deck you can eassily have 5-15 spawns on turn 5-6. So good 1v1 and good multi play. Thanks for the comment.
Your deck is good except for two or three things. Average mana cost is too high, if you dont have a nest invader on turn 1-3 you cant cast any creature spells. In my opinion 25 mana is too much, i get between 18 and 22 depending on the deck. Like the other guys said try getting eldrazi temples and a eye of ugin. in your kind of deck i would not base everything on your broodwardens, so use the spawn you have to cast the big stuff, youll get more later on.