Grovia, Nature Primed

+1: Create a 0/1 green Plant creature token. If it's a mana surge, put a loyalty counter on Grovia, Nature Primed.
-1: Target Arena you control becomes an X/X Elemental creature until end of turn, where X is equal to the number of Plants you control.
-6: Search your library for a Plant card and put it into your hand. If you control an Arena, you may cast that card without paying its mana cost.