Sacrifice your dudes and profit.
The sac outlets:
Butcher of the Horde The best in the deck fantatic beater and free to sac.
Tymaret, the Murder King in this deck it is basically two mana to draw two(potentially 3 or more) cards, and shock something or shock and get a colorless 2/2. Seems alright
Merciless Executioner This guy is already fantastic as-is agains jeski/azorius heroic but and if you have Dictate, an Imissary, or Grim Haruspex down its fantastic value. Unfortunatly, I don't believe he combos with Humble Defector as you have to sac once you have drawn the cards but before they gain control. Please correct me if im wrong on that.
Collateral Damage With Humble Defector it is draw two and bolt. With
Sultai Emissary
its bolt, and a colorless 2/2. Or just sac Rabble tokens.
The Value:Dictate of Erebos Honestly, if you land this with any sort of boards state your likely to win. Your sacrificing your guys for good effects anyways, so getting to maintain your opponents board through this is incredible. Unfortunately, it is a five drop, so i may try Athreos, God of Passage in its place.
Grim Haruspex This guy fuels the whole process. Sac your guys to draw into more fuel, and hopefully just out value the opponent.
Some other consideration:
Ashcloud Phoenix
Jeering Instigator Bloodsoaked Champion Athreos, God of Passage Harness by Force