I might consider running 1-2 Intuition without Brainstorm and fetches. From what I recall omni-show generally runs a full playset of all Brainstorm, Ponder, and Preordain. You have way too many lands in your deck for all the cantrips you have.. you are probably getting flooded way too often.
What I would do (however Intuition also costs more than the cheap blue fetches a la Flooded Strand/Delta):
4
2
5
1
1
What I would do (however Intuition also costs more than the cheap blue fetches a la Flooded Strand/Delta):
-2 Crystal Vein
-2 Daze
+1 Spell Pierce
+2 Intuition
+1 Impulse
If the Intuitions are a no go due to cost then I would just go:
-2 Crystal Vein
-2 Daze
+1 Spell Pierce
+3 Impulse