While you wear this necklace once per long rest you can use an action to cast the Barkskin, Speak with Plants, or Speak with Animals spell.

Oversized Overgrowth: Once per long rest when you score a critical hit against an enemy smaller than you, you may cast Entangle on that target as a free reaction without requiring concentration. The save DC for this spell is equal to 10 + Strength modifier + Proficiency bonus.

Notes: Utility, Necklace