"'Unless the king should come again?' said Gandalf. 'Well, my lord Steward, it is your task to keep some kingdom still against that event, which few now look to see. In that task you shall have all the aid that you are pleased to ask for. But I will say this: the rule of no realm is mine, neither of Gondor nor any other, great or small. But all worthy things that are in peril as the world now stands, those are my care. And for my part, I shall not wholly fail of my task, though Gondor should perish, if anything passes through this night that can still grow fair or bear fruit and flower again in days to come. For I also am a steward. Did you not know?' And with that he turned and strode from the hall with Pippin running at his side." --"Minas Tirith", The Return of the King
A thematic take on Gandalf's retort toward Denethor before the Battle of the Pelennor Fields. He claims to also be a steward, but his realm is the whole of the world, at least of all endangered worthy things.
Grey Wanderer attachment is Wizard Pipe.
Look for the secrecy events, Resourceful, Word of Command, and one of the side quests early. Use Word of Command and Wizard Pipe to set up the Hidden Cache engine. Then watch as the Free Peoples flood your play area and make the forces of darkness rue the day they threatened any under Gandalf's care.
This deck works solo, though the early phases can be touch-and-go with questing. It also works well in multiplayer, especially the global readying from The Free Peoples