A card clearly thought to accelerate even more an already good resource engine, so I think it would see its best use in a mono-Leadership deck devoted to exactly that. I also think that this card best friend is Denethor since it can put it in use starting from turn 1 and can also distribute the resource gained where it's more useful.
Event. Cost: 0.
Action: Discard 2 resources from your hero's resource pool to add 3 resources to that hero's resource pool.
"Nay, my friends, I am the lawful master of the Stone, and I had both the right and the strength to use it..." Aragorn, The Return of the King
The Steward's Fear #3. Leadership.