Excalibur Umbra

Crowd Control

From the shadow of the long night emerges a new Excalibur.

Role: Crowd Control
Aura: Madurai
Polarities: MaduraiUmbraUmbraUmbra
Mastery: 0
Introduced: Update 23.0 (2018-06-15)

Stats

Type: Warframe
Category: Warframes
Mastery: 0
Health: 270
Shield: 270
Armor: 315
Energy: 175
Sprint Speed: 1.0
Build Cost: 10,000 Credits
Build Time: 0m

Warframe dossier

Verified 2026-07-22

Playstyle

From the shadow of the long night emerges a new Excalibur. Built around Slash Dash, Radial Howl, Radial Javelin.

Passive

Umbra exhibits sentience in combat without Transference control. Attacks a percentage faster and deals a percentage more damage while wielding swords.

When to Pick

You want a crowd control toolkit and Excalibur Umbra’s fantasy matches the mission.
Your squad is missing what Excalibur Umbra brings — especially Slash Dash.
You already own the mods / archon shards that make Excalibur Umbra’s scaling comfortable on Steel Path.

Kit Overview

Slash Dash (Ability 1): Slash and dash through enemies alongside a radial specter.
Radial Howl (Ability 2): Let out ferocious howl that stuns nearby enemies and causes Sentients to shed any built up resistances.
Radial Javelin (Ability 3): Radial javelins impale nearby enemies, inflicting Slash Status.
Exalted Blade (Ability 4): Summon a sword of pure light and immense power.

Abilities & Augments

1
Slash Dash →
Energy 25
Slash and dash through enemies alongside a radial specter. The powerful Exalted Blade’s slashes inflict Slash Status.
Augment
Warrior's RestOpen augment →
2
Radial Howl →
Energy 25
Let out ferocious howl that stuns nearby enemies and causes Sentients to shed any built up resistances.
No augment
3
Radial Javelin →
Energy 25
Radial javelins impale nearby enemies, inflicting Slash Status.
No augment
4
Exalted Blade →
Energy 25
Summon a sword of pure light and immense power.
No augment

Ability Priority

1
Radial Howl
Let out ferocious howl that stuns nearby enemies and causes Sentients to shed any built up resistances.
2
Radial Javelin
Radial javelins impale nearby enemies, inflicting Slash Status.
3
Slash Dash
Slash and dash through enemies alongside a radial specter.
4
Exalted Blade
Summon a sword of pure light and immense power.

Helminth / Subsume

Slash Dash is often the Helminth sacrifice if your build never needs Ability 1 and you’d rather import a strip, buff, or survival tool.
Keep Radial Howl and later abilities when they define Excalibur Umbra’s identity.
Never subsume the ability that enables the rest of the kit’s energy or survival loop.

Mod Scaling

Strength: Raises damage and effect potency across Excalibur Umbra’s Strength-scaling abilities.
Duration: Extends channeled / timed effects — often comfort on Excalibur Umbra if the kit leans on buffs or zones.
Range: Helps radius / targeting tools. Dump it if Excalibur Umbra is mostly self-buff or exalted weapons.
Efficiency: Keeps ability uptime comfortable, especially on longer Steel Path missions.

Priority

Match the priority to your main ability — Strength or Duration first for most kits, then Efficiency, then Range.

Mission Usefulness

Mission / Context	Rating	Why
Steel Path Survival / Defense / Disruption	Excellent	Excalibur Umbra is a S-tier Steel Path pick because Exalted Blade still works when every spawn is overlevelled. Summon a sword of pure light and immense power.
Mobile Defense / Excavation	Excellent	Excalibur Umbra wins Mobile Defense / Excavation by parking Slash Dash on the objective instead of chasing stragglers. Slash and dash through enemies alongside a radial specter.
Exterminate / Capture Speed Runs	Excellent	Speed runs favor Excalibur Umbra because Slash Dash skips empty rooms and ends the mission early. Slash and dash through enemies alongside a radial specter.
Spy / Rescue / Nightmare	Strong	Excalibur Umbra can handle Spy / Nightmare with Slash Dash as soft stealth or hard CC, even if it isn’t full invis. Slash and dash through enemies alongside a radial specter.
Open World / Bounties	Strong	Strong on packed bounty camps; Excalibur Umbra still leans on Operator / Archwing for the empty travel stretches while Slash Dash handles fights. Slash and dash through enemies alongside a radial specter. From the shadow of the long night emerges a new Excalibur.
Long-Range Gunplay / Eidolon-Style Content	Weak	Excalibur Umbra wants pack clear or finishers, not pure long-range; Exalted Blade won’t save an Eidolon-style loadout. Summon a sword of pure light and immense power.