If the character’s action faces a fixed obstacle or otherwise tries to alter the world rather than a character or creature, their action faces a static difficulty rating. These actions include picking locks, barring doors, and tactically assessing an enemy camp. The GM may decide that the presence of certain aspects (on the character, the scene, or something else) justifies changing the difficulty.

At other times, an enemy will provide opposition against the character’s action by using a defend action (page XX). In these cases, the GM will also roll the dice and follow the same rules as in the previous section, using any skills, stunts, or aspects the enemy has. Any time you roll to attack an enemy or to create an advantage directly against them, the enemy will roll to defend against it.

Opposition can take many forms. Struggling with a cultist over the ritual dagger has a clear opponent. Or you might be opposed by the power of an ancient ritual that must be overcome to save the world. Cracking the safe in the First Metropolitan Bank to access the safe deposit boxes is a challenge with risk of discovery, but it’s up to the GM if you’re rolling against opposition from the patrolling guards or the difficulty presented by the safe itself.