Oakheart Dryads is a common Enchantment Creature — Nymph Dryad card from Journey into Nyx (JOU), collector number 133. Current market price: $0.09 (foil $0.40), TCGplayer market prices via Scryfall.
Constellation — Whenever this creature or another enchantment you control enters, target creature gets +1/+1 until end of turn.