BossMountaintops of the GiantsChanged in 1 patchVerified on build 25080141

Commander Niall

15,541 HP at Mountaintops of the Giants · Castle Sol Rooftop, with the area's scaling applied. It takes the most damage from Pierce and the least from Slash.

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
Mountaintops of the Giants · Castle Sol Rooftop	15,541	90	×5.484

Damage negation

How much of each damage type it shrugs off. Lower is better for you; the type it takes most is highlighted.

Standard10%

Slash35%

Strike10%

Pierce0%

Magic20%

Fire20%

Lightning20%

Holy20%

Flat defense

Subtracted from each hit before negation; it matters most for weak hits. Area scaling raises it along with HP.

Physical117

Magic117

Fire117

Lightning117

Holy117

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).

Status	1st proc	2nd	3rd	4th
Poison	343	441	731	1,188
Scarlet Rot	343	441	731	1,188
Bleed	343	441	731	1,188
Frost	343	441	731	1,188
Sleep	343	441	731	1,188
Madness	Immune
Death Blight	Immune

HP in each journey

At Mountaintops of the Giants · Castle Sol Rooftop: 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
15,541	18,510	20,361	21,286	22,212	24,063	24,988	25,914

How its AI decides verified

Its attack choices change at 60%, 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 5 m, 8 m, 15 m.
It chooses among 27 attack routines; 18 have a cooldown (5–60 s).

Read from the game's AI script for this boss. Which animation each routine plays isn't named yet.

Kill-speed simulator New

How many hits Commander Niall takes with your weapon and stats, in any journey: damage per hit through its defense and negations, stance, and status procs as its thresholds grow.

Simulate Commander Niall

Patch history 1

Every patch that changed its numbers, read from the game's balance file (regulation) of each version.

1.02.1from 1.00
- HP2,519→2,834
- Standard negation20%→10%
- Slash negation40%→35%
- Strike negation20%→10%