
Terrible. Why?
- Enemies can still spawn on you.
- An elite breaks it, more common than it might seem.
- Action and card for circumstantial benefit.
- You don't stay at many locations for long enough to warrant a card like this.
There are some combo mechanics, In the Know and Connect the Dots for example, still the benefit is extremely limited in scope. The levelup version Barricade is vastly better but again the benefit is so transient that the XP commitment and card slot will just feel that much worse when you have this card in hand unable to leverage it into a useful gameplay benefit.
Personally I think the barricade should have resources on it, and resist so-and-so many attempts to move or spawn into a location, and allow the player to leave instead, but this is not so and thus this remains a terrible card to include in pretty much any deck.