I'm creating a mythic night hag named Grandmother Sorrow using the Mythic Adventures rules, and I just wanted to see what people thought about the mythic abilities I selected for her.
She has the advanced template, so that increases her to CR 10; adding 5 mythic tiers should boost her to CR 13. Five mythic tiers means six mythic abilities.
Legendary Heartstone (Su): Grandmother Sorrow’s heartstone is a legendary item and is considered a minor artifact (because the legendary item ability is taken twice.)
The heartstone has five legendary abilities: dedicated bond, dual souls, eternal bond, rejuvenating, and undetectable.
Dual Souls: Grandmother Sorrow’s heartstone can hold two souls at once. She often uses this ability to keep one soul trapped to enhance perfect mimic (see below), while keeping the second slot open to trap a victim.
As a minor artifact, Grandmother Sorrow’s heartstone can only be destroyed by placing it inside a piece of candy which is then eaten by a child who has never shed tears of sorrow. (This means that the child cannot have experienced a loss such as the death of a loved one or beloved pet.)
Mythic Dream Haunting (Su): Unlike non-mythic night hags, Grandmother Sorrow can haunt the dreams of non-evil and non-chaotic creatures, and her victims suffer 2 points of Constitution drain upon awakening instead of 1.
If Grandmother Sorrow expends one use of mythic power, she can cause horrific dreams at a distance by casting the mythic nightmare spell (Will DC 22 negates).
Mythic Magic (Sp): Up to three times per day, Grandmother Sorrow can expend one use of mythic power to cast mythic deep slumber or mythic magic missile.
Perfect Mimic (Su): When Grandmother Sorrow uses her change shape ability, she can assume the appearance of specific individuals. If she does so, those familiar with the individual receive only half the normal bonus from familiarity to see through her disguise.
If Grandmother Sorrow expends one use of mythic power when creating a disguise to impersonate an individual, she can read that creature’s mind as if using detect thoughts with a range of 1 mile. This allows her to better mimic the individual, granting her a further +10 bonus on opposed Disguise skill checks. The target of her impersonation receives a Will saving throw (DC 22) to negate the detect thoughts aspect of this ability.
If Grandmother Sorrow has the soul of a humanoid trapped in her heartstone, she can automatically read its thoughts to gain the +10 bonus without expending mythic power; the trapped soul does not receive a saving throw.
Pestilential Breath (Su): If Grandmother Sorrow expends one use of mythic power, she can use her disease ability as a breath weapon that affects all targets in a 15-foot cone.