Mag — First Bubble
Star Chart build. Magnetize a heavy. Shoot the bubble. Polarize when shields drop. Crush is a slam, not the kit. Primed Continuity and Primed Flow are the first real upgrade — not Blind Rage.
Codex Checked · Compared against current game data for this update. · Update 43.5 · 5 Sept 2026 · PC · Current
Junctions through the Outer Terminus. Steel Path is the next card, not this one.
Wrong drop or mechanic?
Why this build?
Star Chart for Junctions through the Outer Terminus. Steel Path is the next card, not this one.
Health: Inventory unknown — Mark what you own. Until then this is a recommendation, not a test you failed.
- Magnetize is Mag. The bubble is a damage amplifier, a grouper, and a bullet vacuum.
- Polarize restores your shields and strips theirs. You are a shield caster, not a health tank.
- Crush waits for Fracturing Crush if you want armor strip. Starter just slams.
Don’t use this for: Steel Path endurance · level-cap content · solo level-cap
Accessible mods and a working energy / survivability loop
Bring: Any hitscan / pellet gun — Magnetize sucks bullets into the bubble and multiplies them. A shotgun, a Soma, a Kuva Nukor — if it fires projectiles or hitscan, the bubble eats them.
My test
Did this still work for you?
Your note, in this browser. Separate from Codex verification — the stamp on the card is editorial, this is yours.
Readiness
Inventory unknown
Not checked — add your collection. You have not failed a test.
- Required mods 0/9 · required — 0/9 named
- Forma 0/3 · required — 3 on the card. Codex does not track installed Forma.
- Helminth · optional — Not required
- Arcanes · recommended — 0/1 recommended
- Shards · optional — None listed
Investment: 3 Forma · Reactor · 2 specialised mods. Typical farm ~1–2 hours. Trade if a route is vaulted.
Codex Checked · Compared against current game data for this update. · Update 43.5 · 5 Sept 2026 · PC · Current
High confidence. How strongly the Codex recommends this for its stated purpose — not a test log. Verification is separate: Codex Checked against Update 43.5.
Your next step
Next: Shrapnel Engine — Steel Path
Unlock Helminth, Steel Path, or Archon Hunts before this upgrade is honest.
Shrapnel Engine — Steel PathPlan
Today → next → later
Inventory unknown — mark “I own this” on a few mods. Until then this is a plan, not a score of zero.
- NextGet Corrosive ProjectionOpen Nightwave
- After that2–3 FormaOne slot at a time. Rank 30 after each polarize.
- FinalFirst Bubble — Star ChartStar Chart · Moderate · 2–3 Forma
Upgrade from here
Shrapnel Engine — Steel Path
Locked behind Helminth, Steel Path, or Archon Hunts. Tick those on Progress first.
Open Shrapnel Engine — Steel PathTonight
What is actually up
30 minutes, one hour, or two — matched to this loadout, not a dump of the Origin System.
30 minutes
Farm Corrosive Projection
One named gap. Open Nightwave
60 minutes
Corrosive Projection, then Forma
Finish the missing named card, then spend a Forma if a polarity is still fighting you.
120 minutes
Two farm routes, then a test run
If you are logging off after this, stop at the named component. Do not start a second Forma session tired.
- Farm Corrosive Projection
Open Nightwave
Who this is for
Play this build from zero
You picked Mag at the start, or you just beat The Sergeant. You have never shot a bubble on purpose.
- Time to a playable copy
- Same day. Intensify, Stretch, Continuity.
- First mission to practice in
- A Corpus Exterminate on Venus or Phobos. You want shields to Polarize and packs to Pull.
3 button drills · 10 parts · tick the lists as you go
Before you start
0 of 3 done
Put it on the Warframe
0 of 5 done
Keep this up
Bubble loop
Pocket card. Stick this on a second screen; the long version is the mission below.
- 1Pull (1) a pack into a pile.
- 2Magnetize (2) the heaviest target in the pile. Shoot the bubble. Everything inside shreds.
- 3Polarize (3) when your shields dip, or when Corpus shields need peeling. Shards orbit you and slash.
- 4Crush (4) is a slam for leftovers. Do not build the starter around it.
First mission — press these buttons
- 1
Pull a pack
1Look at a clump, press 1. They slide to your feet.
You will know it worked when: Ragdoll into a pile.
- 2
Tap 2 on the heaviest
2A sphere appears. Shoot the sphere, not the guy behind it.
You will know it worked when: Bullets curve in. The target shreds.
- 3
Polarize when shields drop
33. Your shields refill. Enemy shields pop. Shards orbit you.
Common mistakes
Holding 2
Hold is a personal cone. Tap is the blender. Tap.
When this feels easy
- 1Magnetized DischargePop leftover bubbles instead of waiting.
- 2Then Helminth CrushShrapnel Engine is next.
Parts checklist
0 of 10 owned. Tap How on anything you still need.
Dependencies
11 dependencies
Frame → mods → unlocks. Tick Collection and Progress. This is a decision graph, not a wiki tree.
- 1●magframe
- 2○Corrosive Projectionmod
- 3○Power Driftmod
- 4○Intensifymod
- 5○Primed Continuitymod
- 6○Stretchmod
- 7○Streamlinemod
- 8○Primed Flowmod
- 9○Redirectionmod
- 10○Vitalitymod
- 11○Arcane Energizearcane
Depends on
What this loadout needs
Required is a gate. Recommended is a ceiling. Optional is a later farm — don’t stall the card for it.
Required
Corrosive Projectionmissing · Open Nightwave
Power Driftmissing · Unlock Lua
Intensifymissing · Fight Lieutenant Lech Kril
Primed Continuitymissing · Wait for Baro Ki'Teer
Stretchmissing · Enemy drops
Streamlinemissing · Enemy drops and early missions
Primed Flowmissing · Baro Ki'Teer
Vitalitymissing · Jackal
Recommended
Arcane Energizemissing · Buy 20–40 Platinum worth
Optional. Polarize and Magnetize are not that hungry on Star Chart. Skip until you have it — Star Chart does not need Eidolon arcanes.
Strength
~145% (Intensify)
Duration
155%
Range
145% (Stretch)
Duration keeps Magnetize alive so you can empty a mag into it. Range is Pull and Polarize radius.
From the mods
Live power
Additive from max-rank Codex mods. Efficiency clamped 15–175%. Umbral set is +11% Strength per extra piece.
- Strength
- 145%
- Duration
- 155%
- Range
- 145%
- Efficiency
- 130%
- Energy
- +275%
- Capacity
- 47 / 67
Weapon HUD
Arsenal numbers
Base × damage mods × crit expectation × fire rate × multishot. No faction, no quantization. Galvanized kill stacks are a slider, not assumed.
- Damage
- 35
- Crit
- 12% × 2.00
- Status
- 26%
- Fire rate
- 9.58
- Multishot
- 1.00
- Avg hit
- 39
- Arsenal DPS
- 376
Toggle common mods
Mag mods
- AuraCorrosive ProjectionNightwave
- ExilusPower DriftOrokin Vaults / Lua
- 1IntensifyMercury / Venus rewards
- 2Primed ContinuityBaro Ki'Teer / relics
- 3StretchEnemy drops
- 4StreamlineEnemy drops
- 5Primed FlowBaro Ki'Teer / relics
- 6RedirectionMag is a shield frame. 455 base shields. Feed them with Polarize.Enemy drops
- 7VitalityEarth / drops
| Slot | Mod | Source | How |
|---|---|---|---|
| Aura | Corrosive Projection | Nightwave | |
| Exilus | Power Drift | Orokin Vaults / Lua | |
| 1 | Intensify | Mercury / Venus rewards | |
| 2 | Primed Continuity | Baro Ki'Teer / relics | |
| 3 | Stretch | Enemy drops | |
| 4 | Streamline | Enemy drops | |
| 5 | Primed Flow | Baro Ki'Teer / relics | |
| 6 | Redirection Mag is a shield frame. 455 base shields. Feed them with Polarize. | Enemy drops | |
| 7 | Vitality | Earth / drops |
Any hitscan / pellet gun
Magnetize sucks bullets into the bubble and multiplies them. A shotgun, a Soma, a Kuva Nukor — if it fires projectiles or hitscan, the bubble eats them.
Arcanes
Arcane Energize
Optional. Polarize and Magnetize are not that hungry on Star Chart. Skip until you have it — Star Chart does not need Eidolon arcanes.
Eidolon / trade
Archon shards
| # | Shard | Qty | Source | How |
|---|