Hymmnos

This deck is pretty good but I would suggest you just go and burn wads of 100s in front of their faces.

You might as well throw in Blightsteel Colossus instead. For one more colorless you get infect which can win you the game in one turn if unblocked or cripple their creatures.

I just might not be seeing it but why are there 8 fetch lands? They're adding $800 to the price and you don't have any landfall creatures. Cosi's trickster only procs when an opponent shuffles their library.

You could probably take out a few lands for Chromatic Lanterns. Tap for mana and mana fix on all your lands.

To me, it feels like you're trying to do a ton of different things in the same deck with all the 2x and 3x copies of cards. I do agree with the others that the birds of paradise help out with the curve. The 1x copy of madcap skills has such a low draw, same with the 2x slitherhead (whose purpose is the same as scavenging ooze's) . I would suggest refining your deck to have more consistency.

-2x Slitherhead
-1x Madcap Skills
+1x Fanatic of Xenagos
+2x Myr Superion

The superion may seem out of place, being an artifact creature and not helping bloodhall ooze, but for 2 mana produced by creatures (you have 8 mana producing creatures), you can get a 5/6 artifact creature beater.