Obstacles are there to be overcome

Obstacles are a type of Adventure Card.

Some keywords:

When Revealed: Cards are always revealed when they are drawn, but not necessarily vice versa. Cards discarded from a deck are not revealed.

Attach: Place this card on top of the card mentioned. Players may not interact with Locations that have Unexhausted Attached Obstacles during the Action Phase. When a Location leaves play, any attached Obstacles are discarded (in an order chosen by the players).

Discard: Place this card on top of the appropriate discard pile, face up.

Surge: Draw another, extra Adventure Card. Any rules that applied to the card that triggered Surge also apply to the new card.