Possibly throw in Odric, Master Tactician for some unblockable swinging or even wiping your opponent's side of the field by throwing their tiny creatures at your bigger ones. Anything that gives all of your creatures added abilities would be cool as well, even though it is mana heavy, maybe card:Akroma's Memorial, just so you can capitalize on a quick win once you have enough creatures out. Just suggestions that might allow you to get on the offensive if you need them.

I have considered Wild Beastmaster and Goldnight Commander to give increase power/toughness.

For cards that give all creatures abilities... card:Akroma's Memorial is really nice (although it's really expensive) but I was thinking along the lines of using the new mechanics of Boros: Battalion. I'm gonna be hitting with 3+ creaures each turn anyways, so they would work perfectly. So far I've got:

Lyev Skyknight

Detain any non-land permanent each turn it gets copied and ETB? I'll take that

Legion Loyalist

Gives everyone first strike and trample when 2 or more creatures attack. AND it's a 1 red drop... I'm sold

Assemble the Legion

Kinda high mana cost and slow (fits my deck perfectly) BUT it will generate 1 token for each musker counter each turn. Bonus: Comes with Haste