This card is great for decks that have access to the Leadership sphere and can’t defend much, so that you can return the chump blockers to your hand after they are destroyed while defending. In the next planning phase you can pay for that same ally that defended so that ally can defend against the next big attack! But where this card really shines is in the Journey in the Dark scenario, where you encounter the Balrog. When you face the Balrog, your threat is most likely 40 and above, so you are able to use the Valour action to return those allies who defended back in your hand so in the next round, you can use them again. This card helps even more if your deck can’t bring in cards quickly to your hand. This card can definitely save the day in a pinch!
Rallying Cry
Response: After an ally leaves play, add it to its owner's hand instead of placing it in the discard pile.
Valour Action: Until the end of the phase, add each ally that leaves play to its owner's hand instead of placing it in the discard pile.
The Return of the King
The Wastes of Eriador #3 Leadership.
The only use I have found for this card is in infinite combo decks. And sure, those work, however there are tons of easier ways to break the game. So even in its best-case scenario, this card is cumbersome and has better alternatives, while outside of combo, it is even worse and hardly playable. Some "reset"-quests like The Dunland Trap or NM Foundations of Stone can be somewhat countered through that but again, just use this card slot and the resources to rebuild your board another, more efficient way. Additionally, all these arguments only really apply to its valour action, its non-valour action is almost as bas as To the Eyrie (shudders).
Rating: 2/10
Decks of mine using Rallying Cry