The main goal of this deck is to use Eldritch Evolution to generate tons of value and search out whatever you need.
Ramp:
Arbor Elf: Can untap Utopia Sprawl lands, can be sacrificed to get a three drop if needed.
Utopia Sprawl: mana neutral if you have at least 2 lands, gives you extra mana with an Arbor Elf.
Somberwald Sage
: gives 3 mana for creature spells, you can sacrifice it for a 5 drop late game.
2-drops:
Elvish Visionary: replaces itself.
Ambush Viper
: sort of a removal spell, dissuades attacking.
Duskwatch Recruiter
: card advantage. If it does flip, it also acts as ramp (and keeps it's cmc by the way).
3-drops:
Eternal Witness: gets back whatever you need. Unfortunately Eldritch Evolution exiles itself, but you can still get back lots of other things.
Kitchen Finks: great against aggro, comes back if you sacrifice it.
Rhonas the Indomitable: huge, efficient, deathtouch beater that is hard to kill. Easy to turn on and can pump things and give them trample.
Hornet Nest
: great against death's shadow and other zoo decks. Even if they Lightning Bolt it, you get 3 tokens and it requires a revolted Fatal Push.
4-drops:
Obstinate Baloth: more lifegain, on curve, fun against 8-rack.
Polukranos, World Eater: Can kill something or a few small things if you have enough mana, also gets big.
Surrak, the Hunt Caller: gives stuff haste.
Vizier of the Menagerie: gives card advantage.
5-drops:
Thragtusk: gains you life, leaves behind a 3/3. The best main deck creature against Path to Exile
Nessian Game Warden
: decent body, finds you another creature.
6-drops:
Duplicant: great removal, can get big.
Greenwarden of Murasa: a bigger version of Eternal Witness, also gives you something back upon death.
Primeval Titan: gets Mosswort Bridges, ramps and takes lands out of your deck.
Wurmcoil Engine: lifelink, deathtouch and gives you tokens when it dies.
7-drops:
Elderscale Wurm
: won't let you die. Basically kills burn.
Hornet Queen: gives you tokens with flying and deathtouch which stay if you sacrifice it. Even kills Emrakul, the Aeons Torn!
Moldgraf Monstrosity
: lets you bring some stuff back when it dies. Great for recovering from board wipes.
Sideboard:
Acidic Slime(cmc=5): works against tron (although it might be a bit slow) and anything using artifacts and enchantment. Also has deathtouch.
Gaea's Revenge
(cmc=7): huge, hasty beater that is great against control.
Duplicant(cmc=6): if you need more removal.
Garruk, Primal Hunter: massive card advantage and inevitability. Great for grindy matchups.
Melira, Sylvok Outcast(cmc=2): good against infect. Makes Kitchen Finks invincible, although there are no repeatable, free sacrifice outlets in green, so you can't technically go infinite.
Phyrexian Revoker(cmc=2): Pithing Needle on a stick. Very useful against artifacts, planeswalkers and many creatures.
Reclamation Sage(cmc=3): more artifact or enchantment destruction. Cheaper then Acidic Slime.
Scavenging Ooze(cmc=2): grave hate. Helps set up more value from
Moldgraf Monstrosity
and should have a lot of targets from Eldritch Evolution.
Dosan the Falling Leaf(cmc=3): great against control.
Verdurous Gearhulk(cmc=5): 8 power for 5 mana, leaves behind 4 if you sacrifice it. Great for matchups without much interaction. Also has trample.
Wurmcoil Engine(cmc=6): good against aggro, board wipes or huge creatures.