Cobalt Guard

- I'm having a tough time shooting these guys! My bullets keep bouncing off!
- ―Engineer on Wave 8 (Sorrowful Remains)
Description
The Cobalt Guard is a Lead enemy that appears in Sorrowful Remains, Nightmare Flash, Poor Recollection and Totality Tower as part of the Solar Requiem Event. It also appeared in Nil Zone II, debuting on Wave 4. It is a slow, but tanky enemy that additionally has the Lead attribute.
Logbook Description
"Cobalt Guards were the sworn knights of Umbra's tower, serving beneath Penumbras as its first line of defense. Each one is covered in heavy hand-forged blue plate, thick enough that most weapons bounce right off. It’s hard to say if they are living or dead as they never seem to tire marching throughout the tower."
Appearance
The Cobalt Guard is a medium-sized humanoid knight that wears blue armor, which based on its name would be made out of cobalt. It has a blue chestplate, and shoulder pauldrons donned with a grey metal outline. It also has a blue helmet with the same outline that is designed similarly to the helmets worn by the Knights Templar. It has bands on its arms with metal protruding out of it, and also wears blue metal boots.
Strategy
- As this spawns in hordes, it is best to utilize splash-damage or other AOE towers that have lead detection, like the Golden Demoman, Trapper, Mortar or Snowballer.
- Additionally, any tower that can reduce the Defense this enemy has can help with killing it. Such towers include the Golden Pyromancer and Toxic Gunner.
Gallery
Promotional Images
-
Cobalt Guard on a promotional image.
Miscellaneous
-
Cobalt Guard on its Index icon.
Update History
- 25 September 2026 - v2.11.2
- Cobalt Guard added.
- 28 September 2026 - v2.12.1a
- Cobalt Guard removed.
- 2 October 2026 - v2.13.0
- Cobalt Guard re-added.
- 5 October 2026 - v2.13.0a
- Cobalt Guard removed.
- 9 October 2026 - v2.14.0
- Cobalt Guard re-added, now appears in Sorrowful Remains.
- Defense decreased from 30% to 20%.
- 16 October 2026 - v2.15.0
- Now appears in Nightmare Flash.
- 23 October 2026 - v2.16.0
- Now appears in Poor Recollection.
- 30 October 2026 - v2.17.0
- Now appears in Totality Tower.
- 30 October 2026 - v2.17.2
- Health decreased from 75 to 50 in Totality Tower Easy difficulty.
- Health decreased from 135 to 100 in Totality Tower Hard difficulty.
- Shield Health increased from 45 to 50 in Totality Tower Hard difficulty.
- Cash given decreased from
$63 to
$50 every 50% health lost in Totality Tower Hard difficulty.
| Nil Zone II (Halloween 2026 Live Events) | ||
|---|---|---|
| Previous Debut | Current Debut | Next Debut |
| Corrupted Revenant Wave 3 |
Cobalt Guard Wave 4 |
Lunar Shard & Corrupted Terror Wave 6 |
| Sorrowful Remains (Solar Requiem Event, Night I) | ||
|---|---|---|
| Previous Debut | Current Debut | Next Debut |
| Huntress Wave 7 |
Cobalt Guard Wave 8 |
Meteorite Wave 10 |
| Nightmare Flash (Solar Requiem Event, Night II) | ||
|---|---|---|
| Previous Debut | Current Debut | Next Debut |
| Solar Shard Wave 4 |
Cobalt Guard Wave 6 |
Huntress Wave 8 |
| Poor Recollection (Solar Requiem Event, Night III) | ||
|---|---|---|
| Previous Debut | Current Debut | Next Debut |
| Comet Wave 12 |
Cobalt Guard Wave 13 |
Black Hole Wave 15 |
| Totality Tower (Solar Requiem Event, Night IV) | ||
|---|---|---|
| Previous Debut | Current Debut | Next Debut |
| Dust, Solar Shard & Lunar Shard Wave 1 |
Cobalt Guard & Comet Wave 4 |
Unstable Core Wave 6 |


