Kairos Weekly #13 (October 4-10, 2026): Mimicron is the Big Encore Boss, Aegon's Dream is the Wildcard reward
Mimicron is the Big Encore Boss this week, and the Wildcard Mission guarantees a Vladof assault rifle, Aegon’s Dream. From our own logs, six Level 33 Legendaries recorded on October 4.
Official news
- Restart after the update. Support asks you to restart so the weekly update applies and matchmaking doesn’t throw connection errors.
- Borderlands Online is playable again. Rock, Paper, Shotgun reports that a build of the cancelled, China-only free-to-play MMO, found a year ago, now runs. It is an unofficial fan effort, and the team says it used no generative AI.
Weekly Activities (October 8-15)
- Big Encore Boss: Mimicron. A tougher variant of an existing boss, with a bigger loot pool.
- Wildcard Mission: Savage Salvage (Healthy, Irritable, Chain Master). The guaranteed Legendary is the Vladof assault rifle Aegon’s Dream, and you can rerun the mission to chase a better roll.
- Maurice’s Black Market Vending Machine moved and swapped its stock. The location is shared, but each player sees different items.
Our logged rolls: October 4
We logged 30 Level 33 Legendaries on October 4 alone. These three have reviews on the site. None is a confirmed Mimicron drop, since we don’t track where an item dropped.
Firewerks (Torgue shield), 2 rolls
| Logged | Lv | Capacity | Kill missile | Armor-break missiles |
|---|---|---|---|---|
| 2026-10-04 | 33 | 2,491 | 1,718 damage each | 3 missiles, 344 each |
| 2026-10-04 | 33 | 2,577 | 1,718 damage each | 3 missiles, 344 each |
The signature effect (a homing missile on each kill) read the same on both. What differed was capacity and the extra part: one had a 20% chance to grant +10% weapon damage for 5 seconds when hit, the other up to +20% damage reduction as armor breaks.
Jelly (Ripper grenade), 2 rolls
| Logged | Lv | Damage | Charges | Extra |
|---|---|---|---|---|
| 2026-10-04 | 33 | 1,487 | 4 | +17% status chance, +165% status damage |
| 2026-10-04 | 33 | 1,793 | 4 | +21% grenade damage |
Same level, 1,487 versus 1,793 damage, though the second figure already includes its +21%. One roll leans on status effects, the other on raw damage.
Lead Balloon (Torgue shotgun), 2 rolls
| Logged | Lv | DPS | Parts seen |
|---|---|---|---|
| 2026-10-04 | 33 | 1,101 | Tracker-grenade alt fire, infinite magazine that breaks as it heats up |
| 2026-10-04 | 33 | 1,135 | Gun shield that activates when zoomed, infinite magazine that breaks as it heats up |
DPS differs by about 3%. The real difference is the part set.
Sources
- Borderlands 4: Weekly Update - October 8, 2026 (official support)
- Borderlands 4 Weekly Activities: October 8-15 (Steam)
- Cancelled MMO spin-off Borderlands Online is playable once again (Rock, Paper, Shotgun / Steam News)
Rolls come from screenshots of our own play. Official details are in the linked sources.
FAQ
What are this week's Weekly Activities (Oct 8-15)?
The Weekly Big Encore Boss is Mimicron, a tougher variant of an existing boss. The Wildcard Mission is Savage Salvage (Healthy, Irritable, Chain Master), with a guaranteed Legendary: the Vladof assault rifle Aegon's Dream. Maurice's Black Market Vending Machine has also moved and changed its stock.
Do I need to do anything after the update?
Official support says to restart the game so the update applies and to avoid connection errors in matchmaking.
What is this week's hands-on data?
Six Level 33 Legendaries we logged on October 4: two Firewerks, two Jelly and two Lead Balloon. They are not confirmed drops from this week's boss.