Video Guide
This is a standard 2-cost reroll comp that plays around level 6. Push 6 at 3-2 and roll for most of the units 2 starred, then slow roll at 6 until you hit at least Gnar 3 Kindred 3 (Aatrox 3 and Shen 3 good if you can hit). After that, push levels to add more ghostly units. Any Dryad augments are giga busted.
Early Game
Play around either Gnar or Kindred early (or both if you're a highroller). Early Dryad is great since you can start stacking, but overally just try to play strongest board and hold units you'll want later.
Level 6 Board
The Level 6 board is awkward since this comp really wants important 4 costs (Ornn, Kayn). If you hit either of those, you can play around 4 Dryad or 4 Reaper. If not, then just play a board like this, it will be strong enough.