One drops:
4x Experiment One: I run it as it can get up to being hard to deal with very quickly. It is not very powerful past turn 2 but when it works it can often take 2 or three removal spells to effectivly answer this guy.
4x Kird Ape // Loam Lion: really the backbone of the acrhtype. a 2/3 for 1 allows you to actually keep a threat on the board. interesting interaction, turn one: Experiment One. Turn two: Burning-Tree Emissary Kird Ape and turn 2 the Experiment One is already out of removal range. So if you are on the play. your opponent never even gets a shot at removing the experiment.
two drops:
4x Scavenging Ooze: I actually consider this guy to be stronger than Tarmogoyf. He answers Tarmogoyf, milera pod, control, reanimator, aggro and anything other graveyard or creature based deck.
4x Burning-Tree Emissary: really the card that lets you take the field against most decks. having 3 creatures all with 2 power turn two is very powerful. most modern decks deal 8 damage to themselves thru their mana base alone and that pay allows for 8 damage turn 3.
three drop:
4x Loxodon Smiter: the top of the curve for this deck. this card is the answer to liliana and a pretty hard counter to most other zoo decks. I like being able to throw out a true big fatty after my opponent has blown most of their removal.
spells:
Path to Exile] // Lightning Bolt // Lightning Helix: my removal package. There is not much to say here as ever RW modern deck runs this.
4x Boros Charm: I used it in standard and fell in love. The 4 damage can be nice but it really allows me to commit to the board without fear of a field wipe. I have only given double strike once or twice.
2x Kessig Wolf Run: my late game strategy. It is surprising how effective this is against control. it makes every card in your deck a threat.