I can see why everyone hates on this card, BUT I can see 1 scenario in which it might be OK. If there is a ton of locations in the staging area and you want to ignore them, then play several of these on a location(or some other threat reducing card) and a Thrór's Keyand TAADAH! That location has no effect on anything. That is the ONLY possible scenario in which this card would be decent.
Power in the Earth
Attach to a location.
Attached location gets -1 .
Gandalf, The Fellowship of the Ring
Core Set #56. Spirit.
Power in the earth is terrible. I know, one for one isn't bad, but odds are, that location isn't going to have one threat; which means you're going to want to travel to it to get it's remaining threat out of the staging area. Even if there was a location with 1 threat, there are just so many better options. At least you've now got a proxy for some card that's actually good.