so a couple cool cards I might recommend

1) Shattered Angel is very strong, and at uncommon, also very easy to find

2) Deathless Angel is a good way to avoid getting blown out by wrath effects, and is easily a dolllar rare (great value for no money)

3) Herald of War from the new set is also another dollar rare that's pretty solid, especially in this deck

Side note, you should really only have about 40 lands, so maybe cut a couple for something fun?

Also as far as the soulbond creatures are concernd I'd just toss in Lightning Mauler for fun and fast beats.