bioshift would be useful for this deck. allows you to move +1/+1 counters around. its a 1 drop B/G
Permalink
infinite mana with spansire and mana echoes
you are also using spawnsires effect wrong. spawnsire specifically says to cast eldrazi cards from out of game. the sideboard is part of the deck and can only consist of 15 cards. so you should just carry around like 4 more deck boxes of eldrazi rape and use your side board more wisely.