Tales of the Outlands, ie Campfire Tales and A Very Good Tale, with some twists due to the other decks. Glóin is preferred for the third hero, plus he can be Not Idle, but there are several other good options in the Sideboard. (Also in Sideboard, a bunch of cards removed from the old Sam Gamgee version.)
Player 1 will give you a bunch of cards and resources with Doomed effects. Players 3 and 4 are running Out of the Wild, so Keen as Lances will become cheap eventually. Second Breakfast can enable a number of very cool combos, including:
in approximate descending order of usefulness. Ideally, keep this to the start of turn due to Erestor discards, but realistically you're probably picking out one card that you really want, and the other two or three are just bonus.
Keep an eye on Gandalf's Staff, and remember to ask for it when Glóin goes resource-hunting. Erkenbrand will do most of your blocking (and in fact, everyone's blocking) so as not to worry about shadows. Icing on the cake: Son of Arnor because this deck will build an army fast.