Deadly Arts
Deadly Arts is a trait line for the thief that focuses on use of venoms and poison.
Per point: Power +10 Condition Duration +1%
| Tier | Name | Description |
| Adept | Serpent's Touch | Stealing applies poison for 10 seconds. |
| Master | Lotus Poison | Weaken targets for 3 seconds whenever you poison them. |
| Grandmaster | Exposed Weakness | Deal 10% more damage if your target has a condition. |
| Adept | Back Fighting | +50% damage while downed. |
| Adept | Corrosive Traps | Traps apply 5 stacks of vulnerability (5s) when triggered. |
| Adept | Mug | Deal damage when stealing. |
| Adept | Venomous Strength | When applied, venoms grant 2 stacks of might for 20 seconds. |
| Adept | Potent Poison | Increases poison duration by 33%. |
| Adept | Sundering Strikes | 40% chance to cause vulnerability for 5 seconds on a critical hit (1-second cooldown). |
| Master | Improvisation | Stealing recharges all skills of one type (venoms, signets, traps, tricks, or deceptions) |
| Master | Quick Venoms | Venom skills recharge 20% faster. |
| Master | Dagger Training | Dagger damage is increased by 5%. |
| Master | Combined Training | Dual skills deal 5% more damage. |
| Grandmaster | Panic Strike | When you strike a foe with less than 50% health, you cause immobilize for 4 seconds. (60-second cooldown). |
| Grandmaster | Residual Venom | Applied venoms last one extra strike. |
Critical Strikes
Critical Strikes is a trait line for the thief that focuses on use of and benefits from critical hits and signets.
Per point: Precision +10 Critical Damage +1%
| Tier | Name | Description |
| Adept | Keen Observer | Critical-hit chance is increased by 5% while health is over 90%. |
| Master | Opportunist | Critical hits have a 20% chance to restore one initiative (1-second cooldown). |
| Grandmaster | First Strikes | 10% increased damage when initiative is over 6. |
| Adept | Furious Retaliation | Gain fury for 10 seconds when your target reaches 50% health. This effect cannot trigger more than once every 45 seconds. |
| Adept | Signets of Power | When activating a signet, gain 5 stacks of might that last 5 seconds. |
| Adept | Side Strike | +7% chance to critical hit when hitting a foe from behind or the side. |
| Adept | Concealed Defeat | Create a Smoke Screen when downed (10-second cooldown). |
| Adept | Pistol Mastery | +5% damage with pistols. |
| Adept | Practiced Tolerance | 5% of precision is converted into vitality. |
| Master | Ankle Shots | Critical hits with a pistol have a 60% chance to cripple foes for 3s. (Cooldown of 10 seconds). |
| Master | Signet Use | Gain 2 initiative when activating a signet. Reduces signet recharge by 20%. |
| Master | Combo Critical Chance | Dual skills have a +5% chance to critical hit. |
| Master | Critical Haste | 10% chance to get quickness (2s) on a critical hit (30-second cooldown). |
| Grandmaster | Executioner | Deal 20% extra damage when target is below 50% health. |
| Grandmaster | Hidden Killer | 100% critical hit chance while in stealth. |
Shadow Arts
Shadow Arts is a trait line for the thief that focuses on use of stealth.
Per point: Toughness +10 Healing Power +10
| Tier | Name | Description |
| Adept | Last Refuge | Use Blinding Powder when your health reaches 25% (90-second cooldown). |
| Master | Meld with Shadows | Stealth skills last 1 second longer. |
| Grandmaster | Hidden Assassin | Gain might for 15 seconds when you go into stealth. |
| Adept | Master of Deception | Deception skills recharge 20% faster. |
| Adept | Slowed Pulse | Grant 10 seconds of regeneration if you have 5 or more stacks of bleeding. This effect can trigger once every 30 seconds. |
| Adept | Shadow Protector | When you stealth an ally, they gain regeneration for 5 seconds. |
| Adept | Shadow's Embrace | Remove one condition every 3 seconds while in stealth. |
| Adept | Infusion of Shadow | Gain 2 initiative when using a skill that stealths you. |
| Adept | Cloaked in Shadow | Going stealth blinds nearby foes. |
| Master | Power Shots | Shortbow and harpoon gun damage is increased by 5%. |
| Master | Hidden Thief | Stealing grants you 2 seconds of stealth. |
| Master | Leeching Venoms | Steal health when triggering a venom. This can only occur once per strike. |
| Master | Patience | Regain initiative faster while in stealth. |
| Grandmaster | Shadow's Rejuvenation | Regenerate health while in stealth. |
| Grandmaster | Venomous Aura | When you use a venom skill, you apply the effects to all nearby allies as well. |
Acrobatics
Acrobatics is a trait line for the thief that focuses on dodging and mobility.
Per point: Vitality +10 Boon Duration +1%
| Tier | Name | Description |
| Adept | Expeditious Dodger | Gain 2 seconds of swiftness on evade. |
| Master | Feline Grace | Dodging returns some of the endurance used. |
| Grandmaster | Fluid Strikes | Increases damage by 10% when endurance is not full. |
| Adept | Descent of Shadows | Release blinding powder when you take falling damage. Take 50% less damage from falling. |
| Adept | Power of Inertia | Gain might whenever you dodge. |
| Adept | Vigorous Recovery | Gain vigor upon healing. |
| Adept | Assassin's Retreat | Gain swiftness when you kill an foe [sic]. Can only be applied once every second. |
| Adept | Master Trapper | Traps recharge 20% faster. |
| Adept | Fleet Shadow | Move 33% faster while in stealth. |
| Master | Fleet of Foot | Dodging removes cripple and weakness from you. (10s cooldown) |
| Master | Pain Response | Gain 10s of regeneration and remove bleeding, poison, and burning when struck and health is below 75%. This effect cannot trigger more than once every 45 seconds. |
| Master | Quick Recovery | Gain 2 initiative every 10 seconds. |
| Master | Assassin's Reward | Heal yourself whenever you use a skill that uses initiative. Heal yourself for each point of initiative spent. |
| Grandmaster | Hard to Catch | Shadow step away and give swiftness (12s) when you are disabled (stun, daze, float, knock down, launch, knock back, sink, or fear). This effect cannot occur more than once every 60 seconds. |
| Grandmaster | Quick Pockets | Gain 3 initiative on weapon swap while in combat. |
Trickery
Trickery is a trait line for the thief that focuses on use of steal and managing initiative.
Per point: Condition Damage +10 Steal Recharge Rate +1%
| Tier | Name | Description |
| Adept | Kleptomaniac | Stealing gives you 3 initiative. |
| Master | Preparedness | Increases maximum initiative by 3. |
| Grandmaster | Lead Attacks | Increases damage by 1% per initiative. |
| Adept | Merciful Ambush | Create an ambush trap while reviving an ally. This effect can only occur once every 20 seconds. |
| Adept | Instinctual Response | Use feathers to blind and stealth when you take more than 20% of your health in a single strike. This effect can only trigger once every 60 seconds. |
| Adept | Uncatchable | Leave behind caltrops when you dodge. |
| Adept | Flanking Strikes | Increases damage by 5% when attacking a foe from behind or the side. |
| Adept | Thrill of the Crime | When you steal, you and all nearby allies gain fury, might and swiftness for 10 seconds. |
| Adept | Long Reach | Increases the range on stealing. |
| Master | Bountiful Theft | Stealing grants you and all nearby allies vigor for 15 seconds. Up to two boons are also ripped from your target and granted to nearby allies. |
| Master | Trickster | Tricks recharge 20% faster. |
| Master | Initial Strike | Attacks with the first weapon-skill slot have a 7% chance to regain 1 initiative. |
| Master | Ricochet | Pistol shots have a 5% chance to bounce to an additional target. |
| Grandmaster | Hastened Replenishment | You receive 4 initiative when using a heal skill. |
| Grandmaster | Sleight of Hand | Stealing also dazes your target for 1 second. |
