Theorylytics

Mach Rush

Used by Gauss

Ability1
Energy25

Mach Rush

Burst into a hyper-sprint bowling over enemies and charging the battery. Crashing into solid objects generates a powerful shockwave. Hold to rush continuously.

Introduced in Update 25.7 (2019-08-29)

Ability stats

Strength
  • See in-game / wiki ability card for rank values
Duration
  • See in-game / wiki ability card for rank values
Range
  • See in-game / wiki ability card for rank values
Misc
  • Burst into a hyper-sprint bowling over enemies and charging the battery.

Info

  • Mach Rush is Gauss’s ability 1.
  • Burst into a hyper-sprint bowling over enemies and charging the battery.
  • Use it with the rest of the kit — especially Kinetic Plating, Thermal Sunder — instead of casting it in isolation.
  • Ability Strength, Duration, Range, and Efficiency each matter differently; check Mod Scaling below before dumping all four.

Augment

9

Mach Crash

Mach Rush Augment: Impact shockwave leaves behind a vacuum that sucks in enemies within 8m.

Gauss
Open augment →
Mach Crash

Mach Rush Augment: Impact shockwave leaves behind a vacuum that sucks in enemies within 8m.

Max rank drain ~9; see rank table on the augment page.

Open full augment page →

Cast Changes

  1. Modifies Mach Rush with: Mach Rush Augment: Impact shockwave leaves behind a vacuum that sucks in enemies within 8m.
  2. Rank up the augment to unlock the full effect values.
  3. Costs a mod slot (and capacity) — only equip it when the change matters for your loop.

Worth the Slot?

  1. Worth it when the augment’s change is central to how you play Gauss.
  2. Skip it if the base Mach Rush already does what you need and you’d rather keep the slot for survivability or strength.

Tips & Tricks

  • Read the battlefield first — cast Mach Rush when it actually solves the room, not on cooldown habit.
  • Pair Mach Rush with movement and energy economy so you’re not stranded after a big spend.
  • On Steel Path, confirm whether Mach Rush still carries without strip, Viral, or a squad buff.
  • If you never press 1, it’s the first Helminth candidate on Gauss.

Ability dossier · Mach Rush

Verified 2026-07-22

Synergies

  • Mach RushKinetic Plating

    Use Mach Rush to set up Kinetic Plating, or follow Kinetic Plating with Mach Rush while enemies are vulnerable.

  • Mach RushThermal Sunder

    Use Mach Rush to set up Thermal Sunder, or follow Thermal Sunder with Mach Rush while enemies are vulnerable.

  • Mach RushRedline

    Use Mach Rush to set up Redline, or follow Redline with Mach Rush while enemies are vulnerable.

Mod Scaling

Strength

Strength matters if Mach Rush scales effect power; otherwise dump it for other stats.

Duration

Duration is low priority on Mach Rush unless an augment or lingering effect needs it.

Range

Range is usually dumpable on Mach Rush unless you feel the hitbox is too tight.

Efficiency

Mach Rush costs energy each cast — Efficiency (or strong regen) keeps the loop comfortable on long missions.

Priority

Stack the stats that actually move this ability’s needle, then Efficiency for uptime.

Mission Use Cases

MissionHow to Use It
Steel Path Survival / Defense / DisruptionTest whether Mach Rush still clears or enables clear when enemies are dense and overlevelled.
Mobile Defense / ExcavationUse Mach Rush to control or delete the swarm on the objective, then reposition.
Exterminate / Capture Speed RunsCast Mach Rush only when it saves time — skip it on empty tiles.
Spy / Rescue / Quiet RoutesIf Mach Rush is loud or forces combat, save it for after the vault; if it’s stealth-friendly, use it to stay safe.

Comparisons

  • VS

    Vs similar tools on other frames — Mach Rush is tuned for Gauss’s loop — don’t judge it as a standalone subsume without the rest of the kit.

Other Gauss abilities