I recently came across this
deck earlier in the day and I think deck has legs.
Cirso's Cleaver is a really great value play due to the power level of Killer, and it's very relevant Spellcraft. The rest of the deck is just filled out with good-stuff from each color, and units that can wear Cleaver well.
I'm testing currently to smooth out the manabase, and early game.
All credit goes to Toastasaurus Rex for the original build. Also, leave, or link any deck building comments on his page.
Edit 7/9/2018:
As of today I'm currently running
Teacher of Humility, and a new split of removal spells, and it appears to have helped smooth out the decks weaknesses in the early game. I've also tweaked the manabase to the point where the deck seems to reliably draw TTPPS by turn four.