Agatha's Tree
Agatha's lair used to be guarded by a mirror image spell, which hid her exact location from intruders and gave her time to hurl spells. After the robbery of her mask, Agatha built new defenses around her home. Her spells enabled her to charm owlbears and she convinced the villagers of Phandalin to dig pitfall traps around her grove. These townsfolk had also been seen guarding her lair. In addition, Agatha has wedged wands into trees throughout her haunt and aimed them toward the path to her grove to bring them to bear at a moments notice.
A banshee is incorporeal and therefore can only be harmed by magical means with magical weapons or abilities. Because a banshee is an undead it has all the immunities of undead creatures. Agatha is a spellcaster.
Comments