MTG Salvation

The Idea
Proliferate is an insane keyword. My first thought was to rock hard on the Myojins. That hasn't turned out to be a great plan but I think the deck can use some work.

Myojins
Obviously these are ridiculous if you get them working. Myojin of Cleansing Fire can keep you from getting attacked, Myojin of Night's Reach can keep your opponent from playing anything put an instant, and Myojin of Seeing Winds will draw you everything you need. The drawback is high casting cost. Normally this wouldn't be a problem but so much of the deck is focused on finding Proliferate mechanisms. The obvious solution is more mana acceleration or combos. I'm not sure what the best fit is for the key Proliferate pieces.

Parallax
The Parallax enchantments, like the Myojins, provide some real power but have major drawbacks. Parallax Nexus is pretty weak without some quick Proliferate stuff, Parallax Tide can be a blow out if it starts working early enough, and Parallax Wave is really good even if I haven't established Proliferate tools.

Phantom Creatures
This is a fairly weak theme. The do all right even without Proliferate stuff but they still aren't that great even with it. I'm not sure if this is at all the best way to go with those slots.

Poison
A new addition to the deck, I haven't tested poison much. Right now I like the way that Grafted Exoskeleton works with Child of Alara. One earlier commenter notes that Trigon of Infestation is better thant Serpent Generator. I will investigate that soon. I haven't yet drawn Skithriyx, The Blight Dragon. It seems good regardless and if it puts them on a 6 or less turn clock (with Proliferate) then it's worth it.

Counter-culture
The rest of the Proliferate targets are rounded out with a fun yet powerful group of cards. Lighthouse Chronologist is pretty easy to get there, Avenger of Zendikar makes quite an army that grows quickly, and Magistrate's Scepter works well with Voltaic Key often threatening near-infinite turns (although it is very fragile).

The most notable Proliferate target is Tanglewire which can do dirty, dirty things if correctly played.

A House of Cards
Right now, the word I use to describe this deck is 'fragile'. To work properly this deck needs its enchantments to stick around. If I can't support a Parallax card and it graveyards it can be a major problem. My answer to this weaknes is tutors and counters. The pentacolor general gives me access to all the best counters and tutors. The tutors are fairly straight forward with black tutors letting me get anything, white tutors finding my key artifacts and enchantments and green getting some of the best creatures.

Counters present a different problem. The deck isn't otherwise very heavy blue and so I've avoided running heavy blue counters like Cryptic Command. I like Dissipate because it exiles the spell and Hinder because it bottoms Generals.

A final word on Child
I'm not entirely sure that Child of Alara is the right general. Horde of Notions might be right if I moved more Elementals in. I may soon investigate some other penatcolor generals.

To be added:
* Doubling Season: Pretty simple concept here... Way more counter.
* Fuel for the Cause: Protects the deck's fragile pieces and Proliferates. In the right situation, it's an X-for-1.
* Spread the Sickness: Like the above card this seems like it could be a massive swing in the right situation.

nedz moar Herald of Leshrac

Or am I the only person who loves the idea of that dude in a proliferate deck? =P

That's an interesting idea.... a little dangerous though as he may go to the grave a little too early if built up too quickly. I will test it though. Thanks.

Yes, I left the PWs off this list. I run Garruk Wildspeaker and Tezzeret The Seeker.

Must have missed them somehow.

Thanks for the other suggestions. Trigon of Infestation does seem better than Serpent Generator.