Hedge Whisperer is a uncommon Creature — Elf Druid Detective card from Murders at Karlov Manor (MKM), collector number 165. Current market price: $0.11 (foil $0.14), TCGplayer market prices via Scryfall.
You may choose not to untap this creature during your untap step. {3}{G}, {T}, Collect evidence 4: Target land you control becomes a 5/5 green Plant Boar creature with haste for as long as this creature remains tapped. It's still a land. Activate only as a sorcery. (To collect evidence 4, exile cards with total mana value 4 or greater from your graveyard.)