Miasma

Used by Saryn

Ability4

Energy25

Miasma

Release a poisonous miasma that deals Viral Damage to enemies in range. Foes afflicted by spores are more susceptible to the mist.

Introduced in Update 7.0 (2013-03-18)

Strength

Duration

Range

Misc

Info

Miasma is Saryn’s ability 4.
Release a poisonous miasma that deals Viral Damage to enemies in range.
Use it with the rest of the kit — especially Spores, Molt — instead of casting it in isolation.
Ability Strength, Duration, Range, and Efficiency each matter differently; check Mod Scaling below before dumping all four.

Read the battlefield first — cast Miasma when it actually solves the room, not on cooldown habit.
Pair Miasma with movement and energy economy so you’re not stranded after a big spend.
On Steel Path, confirm whether Miasma still carries without strip, Viral, or a squad buff.
If you never press 4, it’s the first Helminth candidate on Saryn.

Ability dossier · Miasma

Verified 2026-07-22

MiasmaSpores
Use Miasma to set up Spores, or follow Spores with Miasma while enemies are vulnerable.
MiasmaMolt
Use Miasma to set up Molt, or follow Molt with Miasma while enemies are vulnerable.
MiasmaToxic Lash
Use Miasma to set up Toxic Lash, or follow Toxic Lash with Miasma while enemies are vulnerable.

Strength: Improves Miasma’s damage or effect potency where Strength is listed on the ability.
Duration: Duration is low priority on Miasma unless an augment or lingering effect needs it.
Range: Increases Miasma’s reach, radius, or targeting distance.
Efficiency: Miasma costs energy each cast — Efficiency (or strong regen) keeps the loop comfortable on long missions.

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

Mission	How to Use It
Steel Path Survival / Defense / Disruption	Test whether Miasma still clears or enables clear when enemies are dense and overlevelled.
Mobile Defense / Excavation	Use Miasma to control or delete the swarm on the objective, then reposition.
Exterminate / Capture Speed Runs	Cast Miasma only when it saves time — skip it on empty tiles.
Spy / Rescue / Quiet Routes	If Miasma is loud or forces combat, save it for after the vault; if it’s stealth-friendly, use it to stay safe.

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