Alright first of all, I would like to congratulate you on what is probably the most developed and thought out block/set that I have seen done, and a very well themed on at that, lore and all. The only real mistakes are ones that are overshadowed by the sheer greatness of the whole, and it is quite fun looking at some of the combos of existential abilities with new found awesome abilities. I definenetly felt a tied together theme that resonates through all three sets that every block should have.
Good job my friend! (And for the record I like these guildish names a whole ton better than the new three-color guild names.)