Middle-earth: Shadow of Mordor · Wraith ability
Detonate
Detonate allows Talion to shoot fires or barrels and make them explode; the guide explicitly says Talion is immune to the fire.
How it works
The IGN guide lists Detonate among Tier 01 Wraith abilities. Its documented effect is to shoot fires or barrels to cause an explosion, with Talion immune to the fire. The passage does not state the blast radius, damage, or which barrel types are affected.
Read the supporting references
Check the edition and source version for patch-specific details. Guide methodology.