I can see some very amusing games with this deck, but I will just say, if you face a red deck wins, get ready for some serious pain. I would also advise you to put in some white knights.
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needs better win conditions. My advice- drop the invokers and get a set of wolfbriar elementals. If that deck produces enough mana to make gelatinous genesis a win condition, wolfbriar elemental will make a big bang. Also, beastmaster ascension- you need it.
three words: Master of etherium.
As a rule, you might want to add hagra diobolists and jwari shapeshifters in here to add a little more to it. Also, I would advise only 2 seagate loremasters- its just too high a mana cost for the number of lands that you're running. otherwise, nice work.
I can say from experience that open the vaults may well be the most bitchy card ever invented. EVER.