I am getting into MTG and really like Commander...and the Atraxa deck looked really cool (plus it was cheap at Walmart). Trying to upgrade and refine it on a budget.

I like making lots of crazy big monsters really quick, but I do know that it has a lot of problems with being easily stopped. (Guy I tried it against last week pretty much kept bouncing the damage back)

Any budget upgrade and refining advice would be great! As you can see, I pretty much just put in some cheaper cards that I was given by a friend, a few cheapies from StarCity, and some that I pulled from some recent packs. I am aware it's pretty much duct taped together.