You could change daggs + animated weapons with vampires, its almost the same, but you need only 1 card instead of 2. Maybe 3
towers to be able playing Pest in the first turn?
You want to go for Pest denial? Why not changing at least 2 or 3 TU´s with fractals if you really want to keep the TU´s.
Too if it works and you are fast enough, I think you will not need the PhaseShields.
I didnt really play this kind of deck until now...
Maybe this will help you:
http://elementscommunity.org/forum/index.php/topic,3911.0.htmlgood luck