Flame Trap

Acquisition
Skill Quests: Skill Trainers: Signet of Capture:
 * The Misplaced Sword (Heroes' Audience)
 * The Yeti Hunt (Kinya Province)
 * Firstwatch Sergio (Lion's Arch)
 * Bartoch (Droknar's Forge)
 * Dakk (Ember Light Camp)
 * Zhao Di (Shing Jea Monastery)
 * Prophecies:
 * Maila Arrowmane (The Wilds)
 * Keba Silenthoof (Silverwood)
 * Drogo Greatmane (Reed Bog)
 * Brol Migo Hinga (Prophet's Path/The Arid Sea/Salt Flats/Vulture Drifts)

Note

 * Unlike other sources of damage, Traps that deal piercing damage and fire damage linked to Wilderness Survival (Viper's Nest behaves differently) always have a damage level of 0, incapable to be scaled up. This means you will only see the full damage of the trap if it hits the enemy at a location with 0 armor (for example, hitting the head of someone wearing the Dragon Mask).