I love the idea, but the execution is lacking. This card should have a shadow effect in order to be useful, something like "Shadow: Resolve the When Revealed effect of this card". Otherwise this is a coaster. You pay a resource to play it and you have no idea whether or not will it come up later on. And when it does come up, it's usually as a shadow card (especially in solo play). You can make an argument that "at least you have no shadow effect during this attack", but I don't think it's enough to warrant putting Ranger of the North in my deck.
Ranger of the North
Encounter. Surge. Ranged. Sentinel.
When Revealed: The first player chooses a player to take control of Ranger of the North. Then, either deal 2 damage to an enemy or place 2 progress tokens on a location.
The Lost Realm #15. Neutral.