By using items like Red Buff and Ionic Spark, this comp makes great use of the Predator passive. At level 7 you simply run the best units you can, and at level 8 you can look to add Mystic. Priorities to 3 star are Kog'Maw and Skarner.
When you start with a lot of early predators units.
Predators make for a great early game, Red Buff is a great item with the Predator passive, and it's also a good early game item, it's the perfect start.
After hyperolling you should look to econ back up to look for your poison and crystal units.
The comp does its best work when you can get your 1 cost units to 3 star, so we would suggest only playing this comp when you have a good start for it and not forcing it.
You can run either Warwick or Rek'Sai depending on what you find. You can opt to run Nocturne at level 7 if you are running Rek'Sai.