For just a suggestion. I would add Rubblebelt Maaka .

It give the bloodrushed creature an extra one toughness that could end up being vital. For one Red instead of one green like Slaughterhorn

Ty for the suggestion Adams880. It kind of messes up hte mana curve though, cause IF you have to play it as a creature it's too late, dont you think? Any more suggestions? :)

I am unhappy with my sorceries/instants and the sideboard could be a real one. Any suggestions?

As I have found Armed / Dangerous is almost always a good sorcery. It allows you (mana permitting) to get things focused on a small creature, and double strike a big one.

Also just Armed is good, ESPECIALLY with creatures with trample.

And a good old Burning-Tree Emissary is always fun