This is a monoblue version of the famous Necrodonate deck, however I would advise you to splash black for Demonic/Vampiric Tutor, Necropotence, Will and 4x Duress. It will boost the deck a lot.
Not sure which cards used to play in this deck, but it's a classic Type1 deck and it's definitely fun to play!
edit: I believe it also splashed White for 4x Academy Rectors in order to fetch Yawgmoth's Bargain/Illusions and it also played 3-4 Phyrexian Towers in order to sacrifice them and start the combo. But this version is different from yours, no Chronatogs/Smokestacks were used.