This is the deck I used to complete the Druadan Forest solo, progression style.
This quest's encounter cards become stronger the more of them are in play, so a strong start leading to a quick board sweep is crucial to a win. In your opening hand, Light of Valinor, Good Harvest, Steward of Gondor, Burning Brand, Henamarth Riversong, and Warden of Healing are the best cards to see. However, I usually mulligan for Imladris Stargazer; who can reliably find multiple of those options quickly.
Once you clear the board of threats, it's time to turtle! Try not to make too much progress as you build your fellowship and seek out your key attachments. Once you have Steward of Gondor on Elrond and Gandalf ready to be played, it's time to advance to stage three.
Elrond, with Burning Brand and Warden of Healing, provides a solid defender for Dru-buri-Dru. I usually try to persuade him to the victory display in one turn. His boost should be more than enough for you to coast over the final fourteen quest points and remaining Woses.
That's all. Thank you for reading, and enjoy!