Bow of Nylea would fit nicely here.

Myojin of Life's Web is great for cheating dumb big things into play.

Thragtusk. Do I need to say more there?

You could go the route of Birthing Pod but you would have to radically rethink your curve to accommodate it.

Ghost Quarter. Great when your opponents have degenerate lands that you you need to rid yourself of.

Bane of Progress is a must. It can occasionally be a bomb. Plus artifact removal is not something to scoff at.

Hydra Omnivore is nuts in multiplayer. And big as shit regardless.

Mwonvuli Beast Tracker lets you search for your bombs. Well some of them at least.

Sorry if these suggestions are lackluster. I have little experience in mono-colored builds.

I've considered a good amount of the cards mentioned,but the Bow is rather lacckluster, since we hardly attack in this deck. I will find a way to put Thragtusk and Ghost Quarter. Bane of Progress kills our important stuff so i didn't include it.