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Subclass Illrigger Shadowmaster

yoonmoonsik edited this page Jun 30, 2026 · 11 revisions

What Is the Shadowmaster?

The Shadowmaster is an Illrigger subclass built around stealth, shadow control, and single-target elimination. Where other Illriggers confront their enemies with authority or curses, the Shadowmaster uses invisibility, mobility denial, and guaranteed critical hits to eliminate targets.

The Shadowmaster's Interdict becomes a Shadow Mark — stripping targets of their ability to hide, flee, or escape.

Class Features

Progression Overview

LEVEL FEATURE
3 Marked for Death, Strike from the Dark, No Escape
7 Hell's Assassin
11 Umbral Killer

Level 3 Features

Marked for Death

When you apply your Interdict, you also Shadow-Mark the target. Shadow-Marked creatures:

  • Cannot benefit from invisibility or Hiding
  • Allies who attack them deal additional damage equal to your Charisma modifier

Marked for Death transforms the Interdict into a denial package. The target cannot go invisible or hide, and every ally hitting the Shadow-Marked target deals extra damage equal to your Charisma modifier.

Strike from the Dark

When you attack a creature that cannot see you, or that is Frightened, you deal extra necrotic damage equal to 2d6 + your Charisma modifier.

Strike from the Dark rewards attacking from stealth or against Frightened targets. With Hell's Assassin available at Level 7, this bonus becomes consistently available from invisibility — triggering 2d6 + Charisma in bonus necrotic damage on each attack.

No Escape

Shadow-Marked creatures:

  • Cannot use the Dash or Disengage action
  • If they attempt to teleport, they must first succeed on a Charisma saving throw against your spell save DC or the teleportation fails

No Escape locks down the Shadow-Marked target's mobility: no Dash, no Disengage, and teleportation requires beating your spell save DC. Combined with Marked for Death's stealth denial, the target fights where you position them.

Level 7 Features

Hell's Assassin

You can cast Invisibility on yourself as a Bonus Action, without expending a spell slot, a number of times equal to your Charisma modifier. The invisibility lasts until you attack or cast a spell.

Hell's Assassin gives repeatable Bonus Action invisibility with no slot cost. Going invisible on the same turn as an attack activates Strike from the Dark on that and subsequent attacks. At Charisma modifier 4–5, this is available four or five times per rest.

Level 11 Features

Umbral Killer

You can designate a Shadow-Marked target as Condemned. For the next minute:

  • Your attacks against them automatically score a Critical Hit if they hit
  • The target cannot regain hit points from any source

Umbral Killer guarantees critical hits on every attack against the Condemned target, doubling all damage dice — and healing denial prevents recovery through allies, potions, or regeneration. The combination gives a Condemned creature a fixed lifespan for the duration.

Playstyle Summary

The Shadowmaster is a single-target elimination specialist that locks down its mark completely before executing it from the shadows.

Your combat identity:

  1. Marked for Death — Interdict becomes Shadow Mark; target cannot hide, go invisible, or flee
  2. No Escape — target cannot Dash, Disengage, or teleport; it fights where you want it to die
  3. Strike from the Dark — attack from stealth or against Frightened targets for 2d6 + Charisma bonus necrotic
  4. Hell's Assassin at Level 7 — go invisible as a Bonus Action up to Charisma-modifier times per rest
  5. Umbral Killer at Level 11 — declare a target Condemned; guaranteed crits + no healing for one minute

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