Neutral cards are few and far between, especially long lasting assets, so here's one Accessory option that boosts and regardless of class.
The card is very powerful in theory. For 2 resources a +1 to 2 skills is great, so you get your money's worth even if you just ignore the empowered bonus. And sitting somewhere connected to 2 locations actually seems like it should be easy, but it is absolutely not as common as you'dd think.
Often enough, locations aren't actually in play for the majority of a map, so other locations being connected to them doesn't fill the bonus requirements, this makes Hemispheric Map rather terrible on maps like Extracurricular Activity. And then on the other hand many maps have a location where the bonus is the most necessary but inactive, a classic example of this is the Attic and Cellar or the Exhibit locations in The Miskatonic Museum.
The disadvantages are rather obvious, the power depends on the map. Say for example you take this in The Night of the Zealot, the card is inoperable in The Gathering, it's active throughout nearly every location in The Midnight Masks, and again it's just Off in The Devourer Below.
So you pay 2 resources, 3 XP and an Accessory slot for an item that's mostly offline. No bonus at all.
If I start talking about the other campaigns, it's again a rather specific set of goods and bads:
- It's no good in Dunwich until the 5th scenario (even then it's not helpful in the most important part!), it's flaky in the 7th and 8th scenario, so a mixed bag really.
- It's nearly useless in Carcosa until the 5th scenario, from which point on it's actually great, terrific even.
- In the Forgotten Age the question of good or not depends a little. Does this card just count the "connection pips" printed on your card, or does it actually require the locations to be in play. The former makes the card rather good in this campaign, the latter makes it, again, inoperable throughout many many scenarios.
TL:DR, steer clear unless you're familiar with the map and know about a few high intensity spots where it will be good, frankly speaking the only campaign I can guarantee that it's good in is Carcosa scenario 5+, where locations are routinely connected to 2 others or more.