Messmer the Impaler
38,981 HP at Specimen Storehouse · Messmer's Dark Chamber, with the area's scaling applied. It takes the most damage from Slash and the least from Fire.
Where you fight it 1
Each place uses its own copy of the boss with that area's scaling. HP and stance as you meet them (first phase, offline, no new game plus).
| Place | HP | Stance | Scaling |
|---|---|---|---|
| Specimen Storehouse · Messmer's Dark Chamber ×2 | 38,981 | 120 | ×13.156 |
Damage negation
How much of each damage type it shrugs off. Lower is better for you; the type it takes most is highlighted.
Specimen Storehouse · Messmer's Dark Chamber
Specimen Storehouse · Messmer's Dark Chamber
Flat defense
Subtracted from each hit before negation; it matters most for weak hits. Area scaling raises it along with HP.
Status buildup to proc
Buildup needed for the first proc, and how much more each following proc needs (it grows after every proc, up to the fifth).
Specimen Storehouse · Messmer's Dark Chamber
| Status | 1st proc | 2nd | 3rd | 4th |
|---|---|---|---|---|
| Poison | 435 | 533 | 823 | 1,280 |
| Scarlet Rot | 435 | 533 | 823 | 1,280 |
| Bleed | 435 | 533 | 823 | 1,280 |
| Frost | 435 | 533 | 823 | 1,280 |
| Sleep | Immune | |||
| Madness | Immune | |||
| Death Blight | Immune | |||
Specimen Storehouse · Messmer's Dark Chamber
| Status | 1st proc | 2nd | 3rd | 4th |
|---|---|---|---|---|
| Poison | 435 | 533 | 823 | 1,280 |
| Scarlet Rot | 435 | 533 | 823 | 1,280 |
| Bleed | 435 | 533 | 823 | 1,280 |
| Frost | 316 | 358 | 456 | 746 |
| Sleep | Immune | |||
| Madness | Immune | |||
| Death Blight | Immune | |||
HP in each journey
At Specimen Storehouse · Messmer's Dark Chamber: new game plus multiplies HP, defense and resistances again on top of the area's scaling.
| NG | NG+1 | NG+2 | NG+3 | NG+4 | NG+5 | NG+6 | NG+7 |
|---|---|---|---|---|---|---|---|
| 38,981 | 44,396 | 48,835 | 51,055 | 53,275 | 57,714 | 59,934 | 62,154 |
How its AI decides verified
- Its attack choices change at 90%, 40% of its HP: some attacks unlock, get likelier or are forced below those points.
- It picks attacks by how far you are, with cut-offs at 2 m, 4 m, 6 m, 8 m, 10 m, 15 m, 25 m.
- It chooses among 36 attack routines; 26 have a cooldown (8–60 s).
Read from the game's AI script for this boss. Which animation each routine plays isn't named yet.