I know no one wants to see an Ents deck, but I'll post it anyway:
Ents + Gandalf
Ring-bearer: 
Frodo, Mr. Underhill or 
Tired Traveller(30 cards)
1x 
Birchseed, Tall Statesman3x 
Gandalf, The White Wizard1x 
Host of Fangorn1x 
Quickbeam, Bregalad2x 
Treebeard, Guardian of the Forest1x 
Merry, Horticulturalist1x 
Pippin, Friend to Frodo1x 
Barliman Butterbur, Prancing Pony Proprietor1x 
Wizard Staff2x 
Hobbit Sword1x 
Crack Into Rubble1x 
Have Patience1x 
Introspection (outsider card)
1x 
Roll of Thunder2x 
The Terror of His Coming (outsider card)
1x 
Wielder of the Flame2x 
Hobbit Intuition2x 
Ent Moot2x 
Trust Me as You Once Did1x 
Good Work1x 
Kept Safe1x 
There and Back AgainKey Sites:
2 
Fangorn Forest (to get Treebeard ASAP)
3 
Golden Hall (it can't touch Ents nor Gandalf)
This deck counts with the common 6-cards Gandalf-coupling-kit: 3x Gandalf, 2x 
TMAYOD and 1x 
Wizard Staff. 
Have Patience and 
Roll of Thunder are interesting options too...
7 companions besides Frodo, but 2 are weak UB Hobbits. Might even cut the 
Ent Avenger. This deck needs at least 4 companions: Gandalf, Merry, Treebeard and another Ent...
That Merry seems useless... but completes the 3 Gandalf signets for 
TMAYOD. And that's as strong as we know. If he gets killed, things will start to fall...
Ents are weak to crowd control... if we include enough crowd control cards at Series 1 and 2, this deck will have huge natural cons. Enquea can kill Gandalf or Merry easily, and cripple the fellowship heavily...
Given the previous point, there's an alternate starting fellowship than the old Merry + Pippin + Quickbeam one... Start Merry for the Gandalf signet, and 
Birchseed. He can heal Merry's exertions, so you have a fresh UB Hobbit for 
Ent Moot or Treebeard's assignment. That way we reduce the companion count by 1, the other 2 to get 5 can be Gandalf and Treebeard...
Wizard event tricks are 2 generic 
![Gandalf [Gandalf]](https://lotrtcgdb.com/forums/Smileys/classic/gandalf.png)
 pumps, 1x 
Have Patience, 1x 
Wielder of the Flame, 1x 
Roll of Thunder for possession control and 1x 
Introspection for condition control (and 1x 
Crack Into Rubble, but it's not for Gandalf but Ents).
Introspection is an outsider, as the only non-rare TS options for condition control are 
Deep in Thought and 
Sleep Caradhras, those would be OP. Other outsider options are: 
Fool's Hope, 
No Colour Now, 
New-Awakened... 
Crack Into Rubble fulfills the purpose, althought it's not for couplings without Ents. 
Introspection is better for Gandalf.
The other outsider card is 
The Terror of His Coming, a generic pump for 
![Gandalf [Gandalf]](https://lotrtcgdb.com/forums/Smileys/classic/gandalf.png)
 companions that can bring back to hand 
TMAYOD or 
Ent Moot in battleground sites... may be replaced with a TS or outsider card, but it's the best generic pump I could find. There aren't generic pumps for 
![Gandalf [Gandalf]](https://lotrtcgdb.com/forums/Smileys/classic/gandalf.png)
 companions besides 
TMAYOD (
SotSF is rare), maybe 
Strength of Spirit with 
TMAYOD can do the work instead, wouldn't be bad really. Other outsider pump options are: 
The Flame of Anor (not usable in Gandalf coupled decks), 
For A While Less Dark (+2 strength and nothing more), 
Look to my Coming (OP), 
Inspiration (OP and out of place), 
Be Gone!, 
The Sap Is In The Bough...
Kept Safe is here for protection, and 
Good Work for burden control...
You all have my permission to tear this draft apart... But with logical argumentats and counterarguments if possible.