Rock Rock Elementals

Scaling (Greymane/Rock Rock) + Recycling Wraith

Elise and/or Wraith and/or Brann

Recycling Wraith will make sure your rolls costs 0 at all times. Brann is good to give economy with Tavern Tempest or Rodeo Performer. Tethys gives you added reason to cycle as many cards as possible. Rock rock Greymane are your main scalers, and give you stats every time you cycle an Elemental. You should find many Sellementals and Tavern Tempests because of how many rolls you have.

Example