Lightning/Death Sentry Assassin (Trapsin) Build for Diablo 2 Resurrected

Last updated on Feb 16, 2023 at 08:00 by MrLlamaSC 14 comments

The Trapsin Assassin is a crowd controlling expert who utilises a variety of ranged abilities to keep herself safe while her traps attack enemies. Overall, the Trapsin is a competitive build with good survivability, damage, and utility. Trapsins are in fact one of the easiest characters to play in the game and are highly recommended for newer players.



Possibly one of the most underrated characters for newer players, the Trapsin Assassin truly has it all. High damage, multiple damage types, high survivability, good speed, and great crowd control. Highly recommended for anyone looking to get into Diablo 2 PvM.

You can check the viability of this build in PvM by consulting our PvM Tier List.


Trapsin Skill Build

The following section shows the default skill build for the Trapsin. For a detailed breakdown of all core and optional skills as well as the recommended order for allocating skill points, refer to the Skills page of this guide.


Trapsin Stat Points and Attributes

Strength Dexterity Vitality Energy
Enough for gear; around 150 Enough for gear, generally none Everything else None

You can read more details about the Stats and Attribute requirements for this build on our Skills page.


Trapsin Gear

The following section shows some of the most important Items for the Trapsin. For a detailed per-slot breakdown of all Trapsin items and alternative builds, refer to the Gear page of this guide.


MrLlamaSC's Trapsin Video Guide

We also have a video guide that goes over the build, if you prefer that instead of or in addition to our written guide.


Trapsin Breakpoints

In Diablo 2, stats that affect action speed (known as frames) for attacking, casting, blocking, and recovering from a hit can almost never be taken literally. For example, gaining 10% Increased Attack Speed from an item will not necessarily translate into 10% faster attacks. To achieve faster actions, certain breakpoints must be reached, which vary for every class. The tables below list how much of a given stat is required to actually improve the action speed of the class for the stated action.


Faster Hit Recovery Breakpoints

Hit Recovery Breakpoints
Frames to perform action 9 8 7 6 5 4 3
Faster Hit Recovery required to reach frame 0% 7% 15% 27% 48% 86% 200%

Faster Cast Rate Breakpoints

Faster Cast Rate Breakpoints
Frames to perform action 16 15 14 13 12 11 10 9
Faster Cast Rate required to reach frame 0% 8% 16% 27% 42% 65% 102% 174%

Faster Block Rate Breakpoints

Faster Block Rate Breakpoints
Frames to perform action 5 4 3 2
Faster Block Rate required to reach frame 0% 13% 32% 86%

Attack Speed with Flail

Attack speed is used for laying Traps, not cast rate. This only includes Increased Attack Speed from gear. Burst of Speed will positively affect your Trap laying speed as well, although slightly differently than what is shown in the table, as it uses more complex calculations.

Attack Speed with Flails
Frames to perform action 14 13 12 11 10 9
Increased Attack Speed required to reach frame 0% 6% 16% 30% 52% 89%

Trapsin Mercenary

You can either hire a Defensive (Holy Freeze Holy Freeze) or Offensive (Might Might) Desert Guard Mercenary in Act 2, Nightmare difficulty, depending on whether you want to slow monsters for added safety or improve the overall damage of your Mercenary.


Trapsin Early Leveling

The following section features a generic Fire Trap skill point progression meant to make leveling towards becoming a Lightning Trapsin smoother.

  1. 4 points to Fire Blast Fire Blast
  2. 1 point to Claw Mastery Claw Mastery at level 5
  3. 5 points to Burst of Speed Burst of Speed from level 6 until 10
  4. 1 point to Fire Blast Fire Blast at level 11
  5. All points to Wake of Fire Wake of Fire until ready to switch to Lightning Traps (recommended around level 35)

For more comprehensive leveling advice, please refer to our Assassin Fastest Leveling Build.



  • 16 Feb. 2023 (this page): Updated for Patch 2.6.
  • 30 Sep. 2021 (this page): Added video guide embed.
  • 19 Sep. 2021 (this page): Build added.
  • 31 Aug. 2021 (gear page): Page added.
  • 31 Aug. 2021 (skills page): Page added.
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