We will use Arc+Trap in a shaper 5L gloves for clearing maps and 8 second fat Lightning Spire Trap in a 6L for bosses.

Quick Jump

• Pros & Cons
• Build mechanics in short
• Passive Skill Tree
• Leveling / Gear / Gems 

Pros & Cons

Pros

• + great map clear speed
• + serious firepower with very low investment
• + end-game viable (need very good reflexes for end-game though!)
• + massive life regen (up to 20% per second and even more with Tinkerskin)

Cons

• - Squishy as low Life pool (hard to go over 5k)
• - Pretty slow with a wand and Flame Dash

• - sketchy for HC

Build mechanics in short

Trap Support has no cooldown now in 3.3 and you can throw 15 Traps instead of 3 (in the end-game you can have around 23 traps at a time on the ground). THIS IS A BUFF, so now it's all about your Throwing Speed + cooldown for lengthy 8 second Traps.

Arc is a lightning, chaining spell with highest amount of chains in the game. Chain means it will "zap" between enemies. In 3.3 Arc does 15% MORE damage per remaining chain. If 1 enemy is on screen it will be 105% more damage, which is DOUBLE the damage. So it's now good against single target.

We will use Arc+Trap in a shaper 5L gloves for clearing maps and 8 second fat Lightning Spire Trap in a 6L for bosses.

Run around, throw traps, don't run INTO packs or you will die. For the same reason i don't have a dagger and a shield here. Even with Acrobatics, this is still a pretty low HP build. Going ES route is pretty much same, maybe a little better.
Don't stand near bosses or you will die.

Skill Tree 

Ascendancy

Pyromaniac, Perfect Crime, Chain Reaction, Explosive Expert (SC), or Born in the Shadows (HC)

Bandits

Alira or Kill All.

Pantheons

The Pantheon List

• Major: Solaris, Arakaali is also incredibly strong with the regen we get from Ascendancy.
• Minor: Ryslatha

Passive Tree

Leveling / Gear / Gems 

Nothing crazy here. Double Lifesprigs, Wanderlust, Lochtonial Caress. Get Axioms early on. It will help you stack crit fast. 

You can also use Fencoil which is a free Trap link:https://pathofexile.gamepedia.com/Fencoil. It can be later upgraded to a solid 6L!

In the past i used Fire Trap->Ice Trap for levelling, but now it's not needed.

- At the start you will have Explosive Trap. Use it till level 12.

- At level 12 get Arc and start doing this setup:

    3L: Arc-Trap Support-Multiple Traps

    4L: Arc-Trap Support-Multiple Traps-Added Lightning

- Level 18:

    4L: Arc-Trap & Mine Damage-Trap Support-Multiple Traps

- At level 22 buy Deerstalker boots!

Deerstalker

Socketed Gems are Supported by Level 11 Trap
188% increased Evasion Rating
+45 to maximum Life
15% increased Movement Speed
14% increased Trap Throwing Speed
15% increased Movement Speed for 9 seconds on Throwing a Trap

- At level 28 start using Lightning Spire Trap in a second 4L:

    4L: Lightning Spire-Added Lightning-Trap & Mine Damage-Advanced Trap Support (or Controlled Destruction)

-At level 38 start using Cluster Traps Support on Arc:

    4L: Arc-Trap & Mine Damage-Trap Support-Cluster Traps

Flasks

• 1 Diamond for Crit
• 1 Atziri's Promise for Ele->Chaos DPS
• 1 Quicksilver
• 1 Basalt/Quartz
• 1 Eternal Life

More great gear

Loreweave is a fantastic choice for SSF and a super strong choice for Trade league as well. It gives a lot of everything as well as much more damage than Tinkerskin

These gloves can be untill you get Shaper 5L

https://pathofexile.gamepedia.com/Architect%27s_Hand

https://pathofexile.gamepedia.com/Slavedriver%27s_Hand