Leshen

Large monstrosity, unaligned

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• Armor Class 15 (natural armor)
• Hit Points 90 (12d10 + 24)
• Speed 30 ft., climbing 30 ft.

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STR	DEX	CON	INT	WIS	CHA
18 (+4)	16 (+3)	15 (+2)	16 (+3)	18 (+4)	17 (+3)

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• Skills Nature +9, Perception +6, Stealth +6
• Damage Vulnerabilities fire
• Damage Immunities bludgeoning, piercing, and slashing from nonmagical attacks not made with silvered weapons
• Senses blindsight 120 ft., passive perception 16
• Languages Druidic, Sylvan
• Challenge 7 (2,900XP) Proficiency +3

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Innate Spellcasting. The leshen's spellcasting ability is Wisdom (spell save DC 15). The leshen can innately cast the following spells, requiring no material components:

At will: druidcraft, pass without trace
3/day: fog cloud

Detect Life. The leshen can magically sense the presence of creatures up to 5 miles away that aren’t undead or constructs. It knows the direction they’re in but not their exact locations.

Grasping Roots. The leshen can have up to eight roots at a time, each of which can grapple one target. Each root can be attacked (AC 15; 10 hit points; immunity to poison and psychic damage). Destroying a root deals no damage to the leshen, which can extrude a replacement root on its next turn. A root can also be broken if a creature takes an action and succeeds on a DC 15 Strength check against it.

Regeneration. The leshen regains 10 hit points at the start of its turn. If the leshen takes fire damage, this trait doesn’t function at the start of the leshen’s next turn. The leshen dies only if it starts its turn with 0 hit points and doesn’t regenerate.

Speak with Beasts and Plants. The leshen can communicate with beasts and plants as if they shared a language.

Actions

Multiattack. The leshen makes three attacks with its roots, uses Reel, and makes one attack with its claws. Alternatively, it can make two claw attacks.

Root. Melee Weapon Attack: +7 to hit, reach 50 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage, and the target is grappled (escape DC 15). Until this grapple ends, the target takes 11 (2d6 + 4) bludgeoning damage at the start of each of its turns.

Claws. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 18 (4d6 + 4) slashing damage.

Reel. The lichen pulls each creature grappled by it up to 25 feet straight toward it.

Undergrowth Burst (Recharge 5-6). The leshen unleashes a barrage of roots from the ground in a 10-foot square that it can see. Each creature in that area must make a DC 15 Strength saving throw. On a failed save, the target is takes 56 (16d6) bludgeoning damage and is grappled (escape DC 15). Until the grapple ends, the target is restrained and has disadvantage on Strength checks and Strength saving throws. On a successful save, the creature takes half damage, but suffers no other effect.

Reactions

Dark Escape. When the leshen takes damage, it can polymorph into a Medium swarm of bats and move up to 60 feet to an unoccupied space it can see, without provoking opportunity attacks. The leshen remains in this form until the start of its next turn. Its statistics, other than its size and speed, are unchanged. It reverts to its true form if it dies.