You basked in the heat and the sunlight as your new representative body grew within you. Your roots intertwined with the roots of the trees around you and you gradually became aware of the forest for miles and miles around, becoming aware of all the creatures present in the jungle as well. You noticed an expedition of some sort nearby, with someone who appeared to be a game hunter who had split off from the group and was randomly swinging a machete around and striking trees and plants with it.
Suddenly, your consciousness split as your new body woke up, a fold of your trunk opening to let you out. You had a perfectly proportioned muscular build with dark brown bark skin and short but wavy green hair and a short beard. You were wearing a green robe, open above the waist to show off your pecs and abs, and your ears were pointed and had to be at least four inches long each.
You ran through the jungle towards the hunter, your bare feet letting you feel everything around you, and once you reached him, he jumped and immediately tried to shoot you with his rifle. You glared at him, reached out your hand, and vines ripped out of the ground to ensnare him.
“You dare shoot at a guardian of the forest?” You say, “For that, you’ll join me.”
He was pulled into the ground and after he was completely gone, and his begging and pleading had stopped, a small sapling appeared, sprouting out of the ground. Eventually, once the sapling was big enough, it would produce a child body for the dryad soul within, and you would raise him to be a new guardian. He’d have all his old memories, but years being immersed in the forest would dull them.