Esper EDH help. What to keep and what to ditch.

Hi guys. I am making an Esper deck with flicker abilities and of course ETB effects. Me and some friends wanted to make actual Elder Dragon decks and I chose Chromium for the Esper color. Basically I have a few too many cards in my deck and I want some advice on what to ditch and what to replace. I am limited on funds and Karmic Guide is the most expensive thing I don't own in that deck. I do have Sen Triplets for play at a card shop, else I will get demolished with Chromium as my commander. This is meant to be a fun deck and not necessarily so OP that I win every game. I hate extra turn cards and personally wish they would be banned in EDH, so please do not suggest them.
Thanks in advance!

http://deckbox.org/sets/461255

(Don't look at the sideboard. Those are cards I have in other decks that I need another one of.)