First thoughts are, with the new HIDE keyword, that you will likely need something which will ready characters.
Any tips which cards will do this best ?
Unexpected Courage is of course the old standby, especially with multiple cores.
If you're running a hobbit deck (which I think most people will be), Fast Hitch is a cheaper Unexpected Courage (readies a hobbit every turn) - it's from the Dead Marshes pack.
Dwarves have Lure of Moria to ready everyone (Road to Rivendell).
Any deck with a Leadership hero can use Cram (TH:OHaUH) for one-shot readying; any deck with a Spirit hero can use Miruvor (Shadow and Flame) or Westfold Horse-breaker (Hunt for Gollum) in the same way.
Personally, I'll probably just use Unexpected Courage and Fast Hitch for up to 5x readying per turn, but you have options.