Your curve is too demanding for a control deck. With delver out of the deck your land count should at the least be 22-26 depending on if this is midrange or control. The land counts absolutely need to hit in this kind of build otherwise you will fall behind and with out that 1 mana you can not be able to both counter a spell and remove a threat which is critical in esper,grixis, and dimir decks. Otherwise the deck seems fairly solid just gonna have to find cards that do not make or break this deck and replace them with lands.magic still needs lands to do anything lol

Thanks for pointing out the obvious, lol, I missed that in my manic fit. Let me know what you think.