I will probably post a Fire Trapper League Start Guide after Patch Notes are released.

Path of Building: https://pobb.in/nUA5beXZ_UAp Note: The DPS shown doesn't account for additional triggers (Fire Trap of Blasting has 50% for example) and chance to throw additional traps (Swift Assembly and Trap Mastery).

You can check the Youtube transcript (once Youtube generates it) to find out when I am talking about the run. I do not comment much after Act 5 but shortly after mapping begins I go over character progression in Maps.

Act 1 Regex g-g-g|b-b-g|b-[bg]-b|g-b-b|nne|Flam

Auras Act 2 - Herald of Ash & Skitterbots Once you have Charisma allocated - Grace & Skitterbots Once you have Eldritch Battery allocated - Grace & Skitterbots & Herald of Ash

Support Gems 1-11 - Rolling Magma - Arcane Surge - Elemental Proliferation 12-Act 6 Fire Trap - Elemental Proliferation - Combustion Once you get a 4-Link you can add Trap and Mine Damage. 28 - Flamethrower Trap - Trap and Mine Damage - Combustion Act 6 - Fire Trap - Ignite Proliferation - Combustion - Charged Traps (instead of Trap and Mine Damage) Act 6 - Flamethrower Trap - Trap and Mine Damage/Combustion - Advanced Traps - Charged Traps Once you get Fire Trap of Blasting you swap Ignite Proliferation with Trap and Mine Damage. In Maps once you have enough critical strike chance I would swap Combustion with Trap and Mine Damage on Fire Trap. You can also use Explosive Trap of Shrapnel for clear but Fire Trap of Blasting will have better single target.

Gear Progression Collect Transmutation Orbs for the "Added Fire Damage to Spells" craft (4 Transmutes). If using Daggers/Claws/One-Handed Swords for Whirling Blades I would craft Woe Essence that you find onto them and if they have an open Prefix you can craft the the fire damage to spells recipe onto them. Otherwise just craft Added Fire Damage to Spells onto them.

You can farm Fire Trap of Blasting in Merciless Lab but buying it from another player will probably be more efficient. Fire Trap of Blasting removes the Burning Ground effect from the Gem but has higher added Fire Damage against Burning Enemies and 50% chance to trigger an additional Time.

For Gear Progression during Maps see go to 4:48:32.

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0:00 - Intro 27:00 - Act 1, Switch to Fire Trap 2:25:47 - Act 5, Kitava Encounter 3:47:25 - Fire Trap of Blasting 4:44:48 - Act 10, Kitava Encounter 4:48:32 - Character Progression Discussion 4:53:20 - Mapping Continues 7:30:03 - Unending Hunger 7:43:30 - Black Star 8:51:31 - Eater 8:55:29 - Exarch