Bone Piranha Plant

Plant Gang Tactics. The bone piranha plant has advantage on an attack roll against a creature if at least one other piranha plant is within 5 ft. of the creature and the piranha plant isn't incapacitated

Undead Fortitude. When the bone piranha plant dies, it reassembles after one hour unless it was slain from a source dealing cold damage, or if dispel magic or a similar spell was used on it.

Spellcasting. The bone piranha plant is a 1st-level spellcaster. Its spellcasting ability is wisdom (spell save DC 12, +4 to hit with spell attacks). The bone piranha plant requires no material components to cast spells. The bone piranha plant has following spells prepared:

Cantrips (at will): chill touch, prestidigitation

1st level (2 slots): cause fear, false life

Multiattack. The bone piranha plant makes two bite attacks

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) piercing damage.

Bone Rattle (3/day). The bone piranha plant rattles its bones in a defensive stance. Each creature within 30 ft. of the bone piranha plant must succeed on a DC 15 wisdom saving throw or become frightened for 1 minute.

Pot. As an action, the bone piranha plant may enter its pot. While in its pot, its armor class is 18, and it can't take actions or reactions other than exiting the pot. If a creature was grappling the bone piranha plant when it entered its pot, that creature must make a DC 15 dexterity (slight of hand) saving throw. On a failed save, the grapple ends.