Sathrovarr Treant Druid Descent of Dragons

Acorn Bearer, Treenforcements, and Shrubadier are obvious choices for early plays, and Dendrologist always goes well with early treant cards. Other than that, you just want cards that will draw you your important late game like Juicy Psychmelon and Aeroponics, or cards that will efficiently fill up your board like Landscaping and Whipsering woods.