Large Elemental, neutral
Armor Class 14 (natural armor)
Hit Points 147 (14d10+70)
Speed walk +40
Challenge 8
Skills perception +0
Damage Resistances nonmagic B/P/S attacks
Condition Immunities exhaustion, paralyzed, petrified, poisoned, unconscious
Senses darkvision 60', tremorsense 30', passive Perception 10
Languages Terran
Charge. If it moves 20'+ straight to foe and hits with Slam attack on same turn target takes an extra 9 (2d8) bludgeoning damage. If the target is a creature it must make DC 16 Str save or be knocked prone. If the elemental used Nimble Separation before making this Slam attack the target has disadvantage on the save.
Elemental Nature. Doesn't require air food drink or sleep.
Stone Camouflage. Advantage on Dex (Stealth) checks made to hide in rocky terrain.
Multiattack. Three Slams or two Skipping Stones.
Slam. Melee Weapon Attack: +9 to hit, 10 ft., one target, 15 (2d8+6) bludgeoning damage.
Skipping Stone. Ranged Weapon Attack: +9 to hit 20/60' one target 15 (2d8+6) bludgeoning damage and the stone bounces to another creature within 10 ft. of target. That creature must make DC 16 Dex save or take 9 (2d8) bludgeoning damage.
Nimble Separation. Can briefly separate its components parts and take the Dash action. Opportunity attacks vs. it have disadvantage until start of its next turn.
Source: Tome of Beasts 3 · OGL/Open