This deck is currently untested but here's a rough idea of what it will look like
Invasive Species has such an amazing potential for Aggro/Midrange/Control, but I haven't seen anyone make use of it yet. I haven't decided what I want this deck to play like, but I will fiddle around with building this once I get more shiftstone.
I haven't crafted this deck yet, but will eventually. Basically, the idea is to make use of
Invasive Species' amazing Bargain/Entomb. Get
Invasive Species into the void, recur it, it dies and adds a copy to the Market, recur it, another copy gets into the Market after it dies, etc...
Repeat until you have 12 copies in the Market. The next time you hit the enemy with an empty hand, congratulations, you have a swarm of Invasive Species (hopefully, they've been buffed up)!
Hoarding Builder just skips the recursion entirely and allows you to put two copies of
Invasive Species into the Market (assuming that at this point, you already have at least 2 in the void). I will
Definitely add Merchants into the final build. Even if
Hoarding Builder doesn't add
Invasive Species to the Market, he can add a different unit/spell to it and you can retrieve it later with a Merchant.
Twilight Raptor is to cheese in a hit (but honestly, it will probably be removed in the final version).
Bottled Storm is there as well to cheese in a ping (hitting the opponent to get
Invasive Species from the Market). I may replace
Bottled Storm with a different burn spell that's cheaper to play. I do like it because I can plop it down, so it won't take up hand space (necessary to keep empty for the bargain effect). It does force card draw after you've used it 3 times, but with different
Bottled Storms, you should be able to control when you draw/not draw by purposely using the effect of another one. It also looks like too much recursion, so I will definitely omit some of those cards in the final version.
The sideboard contains cards that I am considering swapping into the main deck after testing.