
Nobody mentioned the level 0 combo A Chance Encounter + Calling in Favors.
2 Actions:
- Take an ally from any player's discard pile (optionally use it)
- Take the chosen ally to your hand and search your deck for another ally (if you find one, put the ally into play)
Later play the ally on your hand again.
Works great e.g. to replay a defeated Duke or use your/another players expensive defeated ally to get it back and put a cheaper / equally costed ally into play.