How does the Wild Hunt Navigator work exactly?

Solution 1:

It works exactly as stated on the card. However, it can be quite confusing when you first read it. Firstly, there are exactly four bronze Wild Hunt cards:

• Wild hunt Hound
• Wild hunt Rider
• Wild hunt warrior
• The Wild Hunt Navigator itself

These are the only cards that can be targeted by the Wild Hunt Navigator. That's what the "a bronze Wild Hunt ally" means. It has to be on your side of the board, and it has to be one of these four cards.

The "summon" part means that, if you have at least another copy of the targeted card in your deck, you can take one of the available copies out of your deck and put it on the battlefield.

TL; DR: To properly use this ability, you must have a copy of one of the four cards above on your side of the battlefield, and another one in your deck.