I run a mardu warriors deck that is similar to this so here are some recommendations I find useful:

War-Name Aspirant, mardu hateblade, mardu hordechief, Disowned Ancestor, rush of battle, mardu shaddowspear, battle brawler, Kolaghan Aspirant, Arashin Foremost, secure the wastes, Herald of Dromoka

So, how is the current incarnation of this deck doing? I like it because it's 100% mardu. Im running something similar but using some warriors from another clans and sorin. Why are you not using sorin anymore btw?.

Also, what would you use if you didn't have 4 zurgo bellstrikers? I don't have him and kinda don't want to put him on the same deck as the helmsmasher version.

wowsuchdoge, I think Sorin is just a little slow for what I ultimately want out of the deck. Without Zurgo Bellstriker, I’d start looking at some of the two drops honestly or low cost dash mechanics. The biggest reason for Bellstriker is to trigger Fatal Push Revolt.

There are a few good Dash creatures or decent bodies at the 1-2 CMC slot if you don’t want to run both versions of Zurgo.

The deck itself is fairly consistent as long as you hit all three colors on curve or hit RB at least. Like all creature deck it is prone to removal heavy decks.