Definitely throw in four Squelching Leeches and a couple Herald of Torment .

I would Cut all of the Boon of Erebos for 2Murderous Cuts and 1Bloodsoaked Champion.

Looks explosive +1

Bloodsoaked Champion in the main for sure. Despise would be a good side board considering the state of the current meta.

Se7enfoot Hey im looking for a better replacement for the Mardu Skullhunter give me a light with this one. Thanks for the +1 ;)

If your going for speed maybe Gnarled Scarhide. If you want to have something more defensive Typhoid Rats. Grim Haruspex provides a good draw, and a decent 3/2 body on the field.

Gray Merchant and the archetype of finality are going to slow you down since you only have 21 lands. Sign in Blood is an option, and you can target opponents in a close match for the win.

I'm trying to get only common and uncommon, to get this deck the more budget possible...