Axing the legend rule lets you double up on your commander, which is all the easier when your clone is already sitting in the command zone next to your partner of choice
And the face commander itself, Hazel of the Rootbloom, is among the most expensive cards from Bloomburrow
Oyobi costs a lot of mana but offers a commanding board presence to back itself up
Siege Veteran provides more removal protection by creating Soldier tokens when another nontoken Solider dies, helping you to maintain your board presence while fighting through your opponents spells
Edgar Markov comes loaded with first strike and haste, too, making sure you can pump your team the turn it comes out and, more often than not, be able to attack through most creatures your opponent controls
I also tossed in the mana doubler (Mana Reflection) too