A deck to support another deck running Fellowship. As that deck cannot play or put into play non-unique allies, this deck must do it for them. Ceorl and Emery help to get the Fellowship contract up and running sooner. Desperate Alliance can also trigger the contract to flip, and as the hero-on-loan does not leave play (if all goes well) upon returning to you, the contract will remain flipped. Unfortunately, this prevents the Fellowship deck from playing another unique ally, so Desperate Alliance is best used once the contract is already online to buff Glorfindel during combat.
Starting Hand
Strider is a priority, to keep Glorfindel from piling on too much threat. Resourcefuls, too, before any mishaps pull you out of secrecy. Gather Information can help find critical combo pieces (Strider cough cough), and is important for turning Thalion into a hero.
Allies
We already discussed some of these. Give 'em all to the other deck. Put horsies on 'em first. You can put Stallions on your Celduin Travelers I guess, but the other deck can ready allies to better make use of the increased stats.
Threat
Galadriel will keep your threat low and your hand full, so the other deck should get all of her folks' Greetings. It'll make up for all of the wandering those Tooks get up to.
Combat
Glorfindel can attack decently enough, and the Fellowship deck has a few ways to put Sentinel on its people. They can also help out with ranged, cuz enemies these days tend to have more armor than not. Listen, the other deck is the workhorse, this deck is just the enabler.