Treant, Stone

Family: Treant

Huge elemental, neutral

Armor Class 14 (natural armor)
Hit Points 403 (26d12 + 234)
Speed 30 ft., burrow 5 ft.

STR	DEX	CON	INT	WIS	CHA
30 (+10)	8 (-1)	29 (+9)	10 (+0)	16 (+3)	12 (+1)

Saving Throws Dexterity +4, Wisdom +8
Skills Perception +8, Stealth +4
Damage Resistances bludgeoning, piercing, and slashing from nonmagical weapons that are not adamantine.
Damage Immunities acid, poison
Condition Immunities poisoned
Senses darkvision 60 ft., tremorsense 120 ft., passive Perception 18
Languages Sylvan, Terran
Challenge 15 (13,000 XP)

Special Traits

• Acidic Blood. Anyone striking the stone treant with a melee attack that inflicts piercing or slashing damage releases a gout of acidic blood. Each creature within 5 feet of the treant must attempt a DC 18 Dexterity saving throw, taking 22 (5d8) acid damage on a failed save, or half as much on a successful one.
• Rampage. When a stone treant reduces a creature to 0 hit points with a melee attack on its turn, the stone treant can take a bonus action to move up to half its speed and make a slam attack.
• Radial Symmetry. Because of its shape, the stone treant can bring no more than two of its slam attacks to bear on any one target. However, this symmetry prevents the treant from being surprised.
• Trampling Charge. If the stone treant moves at least 20 feet straight toward a creature and then hits it with a slam attack on the same turn, that target must succeed on a DC 18 Strength saving throw or be knocked prone. If the target is prone, the stone treant can make one slam attack against it as a bonus action.

Actions

• Multiattack. The stone treant makes three slam attacks.
• Slam. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 32 (5d8 + 10) bludgeoning damage.