I tried something similar to your Freeps and found it very dependent on the matchup. For example, southron archers will easily exhaust your Merry and then you need to discard cards to allow
Lindenroot and
Birchseed to skirmish and Treebeard can't skirmish at all. You would run into same trouble against Fierce minions such as
trackers or Nazgul.
For that reason I switched to
Merry, Impatient Hobbit and
Gandalf, Greyhame. This one works great for me.
Your deck is still ok and it might be fun against certain shadows, but against some others it will be quite frustrating having companions who can't fight.
You might wanna add some
Greed protection in there. I find
Albert Dreary to be the best for the job. If you see your opponent playing Uruks, just pull him out with
AWINL.