Kassandra, The Wilderbeast

Indestructible, Trample
As long as your devotion to green is less
than five, Kassandra isn't a creature.
At the beginning of your upkeep, you may search your library for a creature wolf card, reveal it, then shuffle your library and put
that card on top of it.
"Her bow sings a song of nature's wrath, and her wolf answers the call."