Medium Elemental, Neutral
AC 16
Initiative +2 (12)
HP 123 (13d8 + 65)
Speed 15 ft. (30 ft. when rolling, 60 ft. rolling downhill)
mod
save
mod
save
mod
save
Str
20
+5
+5
Dex
14
+2
+2
Con
20
+5
+5
Int
11
+0
+0
Wis
12
+1
+1
Cha
11
+0
+0

Immunities Poison; CharmedExhaustionFrightenedParalyzedPetrifiedPoisoned

Senses Darkvision 60 ft., Tremorsense 60 ft., Passive Perception 11

Languages Primordial (Terran)
CR 6 (XP 2,300; PB +3) 

Actions

Avalanche Slam. Melee Attack Roll: +8, reach 5 ft. Hit: 12 (2d6 + 5) Bludgeoning damage. If the target is a Large or smaller creature and the galeb duhr moved 20+ feet straight toward it immediately before the hit, the target takes an extra 7 (2d6) Bludgeoning damage and has the Prone condition.

Animate Boulders (1/Day). The galeb duhr magically animates one or two boulders it can see within 60 feet of itself. Each boulder uses the Galeb Duhr stat block, except it has Intelligence and Charisma scores of 1 and lacks this action. The boulder takes its turn immediately after the galeb duhr on the same Initiative count, and it obeys the galeb duhr. A boulder remains animate for 1 minute or until it or the galeb duhr dies.


Source: MM'25, page 127.