Looking for an opinion on my new Proliferate Mtg deck.?

This deck is freaking sick! GJ on the everflowing chalice+Gambit goodness. Take out Necropede and replace them with belight agent, plague myr + Tezzert, agent of bolas is also very sick. Fuel for the cause can be replaced with mutagenic growth, and yeah, Phyrexian Juggernaut is fine as a one of, two is just tooooo many. You might as well replace the second copy with mindslaver. I want to play against this deck though, GJ again on making it. Seems like a lot of fun.