just so you know the last deck is called Peddle to the Metal, it went 24th at a scg open a few weeks ago.

Ever considered Kalonian Hydra ?

I did consider him, though I haven't had a chance to chuck him in this deck and see how he plays.

Any suggestions what should be dropped to give him a shot?

Wombo i suggest you drop Simic Charm for Kalonian Hydra

I'll give it a shot and let you know what I think.

I'm a bit concerned that I will lose Simic Charm as a combat trick and Kalonian Hydra may not be consistently cast with only 22 land with no ramp.

wombocombo, Kalonian Hydra is also 22$ :P

If it wasn't so expensive, he would be in my Golgari and Simic deck without a doubt.

I don't mind shelling out $22 for Kalonian Hydra , he's a good card that I may use in a Hydra/Corpsejack Menace deck post rotation. I also managed to pull 2 Hydras during the pre-release :P

I would take out Strangleroot Geist for 2 Bioshift and 2 Renegade Krasis . The synergy between Renegade Krasis and Master Biomancer I great. Having them both out I you have Master Biomancer out and play Renegade Krasis you can bioshift the two counters on to Master Biomancer and for the rest of the game when you play a creature everything with a plus one counter evolves.

That sounds like a fun little interaction. Thanks for the suggestion 323Dimitri!