False Appearance. While the corrupted birch-wood remains motionless, it is indistinguishable from a normal tree.
Siege Monster. The corrupted birch-wood deals double damage to objects and structures.
Oozing Form: Wherever the corrupted birch-wood moves, it leaves behind an ooze that deals 2d8 necrotic damage if stepped upon.
Multiattack. The corrupted birch-wood makes three slam attacks.
Slam. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 16 (3d6 + 6) bludgeoning damage.
Rock. Ranged Weapon Attack: +10 to hit, range 60/180 ft., one target. Hit: 28 (4d10 + 6) bludgeoning damage.
Devastating Entangle. Grasping weeds and vines sprout from the ground in a 20-foot square starting from a point within range. A creature occupying the area when you cast the spell must succeed on a Strength saving throw or be Restrained by the entangling Plants until the spell ends. A creature Restrained by the Plants can use its action to make a Strength check against your spell save DC. On a success, it frees itself. If the creature is restrained in this way, it will take 2d8 necrotic damage until it breaks free.
Animate Trees (1/Day). The corrupted birch-wood magically animates one or two trees it can see within 60 feet of it. These trees have the same statistics as a corrupted birch-wood, except they have Intelligence and Charisma scores of 1, they can't speak, and they have only the Slam action option. An animated tree acts as an ally of the corrupted birch-wood. The tree remains animate for 1 day or until it dies; until the corrupted birch-wood dies or is more than 120 feet from the tree; or until the corrupted birch-wood takes a bonus action to turn it back into an inanimate tree. The tree then takes root if possible.
The corrupted birch-wood can take 1 legendary action per turn. This legendary action regenerates at the start of the corrupted birch-wood's turn.
Curse of the Corrupted Vine: The corrupted birch-wood selects a creature within 120ft. This creature must make a DC16 wisdom save. On a failed save, the corrupted birch-wood casts bestow curse on the target at range. The DM selects the specific curse that is to be bestowed upon the selected creature.
Description
The corrupted birch-wood is an animated tree. The creature is given life by way of a demonic or otherworldly force of some sort. Typically, the evil force imbues the corrupted birch-wood with terrifying powers, bending the plant to it's will.
The corrupted birch-wood is gifted sentience upon animation, but it's mind is specifically geared towards it's master's bidding. If the corrupted birch-wood loses connection with it's master, it will simply follow it's original purpose. If the corrupted birch-wood is discovered by another sentient plant, it will be recognized as kin, though the feeling will likely not be mutual.
Corrupted birch-woods are the favored weapons of twisted monks that have been seduced by the demon prince Graz'zt. Others have known to use such creatures to destroy entire villages over the course of a day. Such power over nature is rarely seen.
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