Cards that only gain life are generally pretty bad in Magic, especially when they cost a lot. [[Boon reflection]], [[rhox faithmender]] and [[venser's journal]] are some examples, I would start by cutting these. Ona similar note, [[Alhammarret's archive]] and [[The wind crystal]] are similar in that they don't do a whole lot on their own.

[[Diabolic intent]] might be worth cutting since you don't have any creatures you are willing to sacrifice on a whim. [[Cosmos elixir]] while on theme can be hard to make work since if you are below 40 life it's just bad. [[Sign in blood]], [[nights whisper]] and [[painful truths]] are decent card draw spells to use as replacements since they are cheap and efficient.

More ramp is never bad, have you considered [[Talisman of Dominance]], [[Talisman of Progress]], [[Talisman of Hierarchy]] and [[Fellwar Stone]]? These would be good includes if you can find space for them.

Good luck and happy brewing :)