Rooter (5e Creature)
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Medium plant, neutral evil
False Appearance. While the rooter remains motionless, it is indistinguishable from an ordinary plant.
Fear of Fire. If the rooter takes fire damage, it has disadvantage on attack rolls and ability checks until the end of its next turn.
Vine. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 (1d8 + 2) bludgeoning damage. If the target is a creature, it must then succeed on a DC 12 Constitution saving throw or become infected with a disease. Creatures immune to the poisoned condition are immune to this disease.
Foul plants that sprout from humanoid corpses, rooters attack humanoid settlements indiscriminately and communicate with a form of complex movements and gestures. They are vaguely humanoid in appearance, but they have no noticeable facial features, all looking more or less identical, save for the arrangements of growths and vines that carry vile pollen that infects humanoids and creates new soldiers. They consume humanoid corpses, leaving a few of their victims intact to sprout new soldiers. They are frightened of fire, and avoid open flames.
Variants: Special Rooters
Some rooters, usually those whose hosts were spellcasters, can speak some or all of the languages their host did, others might retain some of their intellect and others still might gain some or all of their hosts' spellcasting abilities, and some wield the weapons or wear the armour of their hosts.