Welcome to Librarium Online!
I am trying to get into Wood Elves and like the look of Drycha and would like to do a list based off of her. Would it be possible?
"They say the Darkness consumes you. They don't say what happens after It's done."
Sure, its possible.
Quite a few of the guys have made lists and they are in the Army List section.
A quick search should help you find them. Basically they tend to be fairly similar but it should give you a great heads up on some of the different units people have used.
Mirage Arcana Podcast
The "A Smart Player Will..." theory is a complete paradox. If we make an assumption that everything we do is outsmarted, then theoretically we can never win.
Just remember that in taking all Forest Spirits you lose the vast majority of your firepower and maneuvrability(being unable to flee from charges, and with no access to Warhawks or Glade Riders).
But, yes, it's possible. If you like Dryads then this is probably the biggest chance you'll ever have to use them.
Conclusively, I would say go ahead, it's your army. They'll be harder to play well but I guess that's the challenge.