@ Drossie

Imo, you will have some trouble with the mana base...
You have low lands (that actually should also have fetchlands to goyf enable) and too much creatures, what make the need for more stable lands... you have only 14 pump spells, and that make berserk a lot worse... and you could get all the petals and all the ESG, since petals are good for goyf and ESG will help you with the mana-base
i would cut berserk off from this list and make the creatures the main objective, having the pumps to help then, or make room for some seal of strengh and briar shield to look for a second or third turn kill, with petals and ESG... for the berserk version, i would use no quirion and use ridgeback instead of Lion... For the creatures version i would cut BotH for Briars and finde room for 12 Lands, helping you to play then... and so yould play River Boa too...