Soldier's Might

With only 19 lands, the biggest suggestion I have is cutting down the mana curve as low as possible, especially since you want to be fielding critters and targeting them quickly, as half the deck will be dead draws without the other half, so the longer the game runs, the worse your topdecking options become. I know you're going for the Hero of Iroas reduction angle, but there's only 3 copies that can only reduce 12 targets as is, so that's relatively unreliable.

I'd suggest cutting True Love's Kiss for Rip Apart, which is just about the best removal option this deck can have. Half the cost and doubles as a critter bolt

Cut Unquestioned Authority for Defiant Strike, as you're going to go over the top of opponent's critters anyway thanks to the boosts your critters get, so being able to get the +1 material with a small attack boost is more valuable as you can also do something else that turn, and at instant speed. Cut Fists of Flame for Ancestral Anger for similar reasons, as it's trading +1/+0 for being able to be played a turn faster/with more development, and you're probably not going to be able to take advantage of the multi-draw effect with so few lands anyway. Since you've cut 8 of the auras, you can drop Hero of Iroas for Satyr Hoplite to keep the speed cooker going.

Bonds of Faith in the flex spot of pseudo-removal vs aura boost target is interesting. I'm not necessarily opposed to the idea, especially since it would turn your 1/1 into a 4/4 turn 2 and let you start a fast damage clock, assuming your playing against something that's not running much quick removal.

Just some thoughts on how I'd rework the deck for speed. I know the build is older, but it got modified, so I figured I'd chime in with some thoughts.