She is a Green Hag who lives in Conyberry, using the same name as the Banshee she's replacing in Lost Mine of Phandelver. While on the outside she's still a typical Hag in both image and temperament, she does have a warm and tender spot in her heart for the children she adopted into her coven. She tends to the children quite well while she guides them into her craft. Because of this, she's Chaotic Good, and isn't as ugly as expected unless she alters her form for effect. (She resembles Elphaba from Wicked more than a traditional Hag.) Her deals tend to be more prankish and embarrassing then corrupting.

She uses the same hint mechanic as with Dragons, demanding an increasing price for each individual tip. It starts at a value of 100 GP and doubles with each sequential tip.

When I design her character sheet, I'll use the Witch class I incorporated into Æthercoil, and listed in Æthercoil Magazine.

Grandmother Agatha

Level 5 Chaotic Neutral Female Moon Elven Witch, Hag

AC: XX

Hit Points: 33 (Hit Dice: 5d6)

Proficiency Bonus: +3

Initiative: +1

Spell Points: 27 (Max Spell Slot: 3^rd Level)

Speed: 30 ft.

Proficiencies

Saving Throws: INT +6; WIS +6)

Skills: Perception (WIS, +6); Arcana (INT, +6), History (INT, +6); Intimidation (CHA, +5), Persuasion (CHA, +5)

Armor: Armor

Weapons: Longbow, Longsword, Shortbow, Shortsword;

Kits: Herbalist’s Kit, Calligrapher’s Kit

Senses: Campaign Resources/Magic/Spells/Darkvision 60; Passive Perception 16

Language: Common, Elven, Sylvian

Spellcasting

Spell Point Variant Enabled

Spellcasting Ability: WIS (Spellcasting Bonus +6; Spell Save DC 14; Spells Preparable: 8)

Prepared Spells

Cantrips: Campaign Resources/Magic/Spells/Mage Hand; Message, Thaumathurgy

Level 1: Cure Wounds, Entangle, Fog Cloud, Illusionary Script

Level 2: Blindness/Deafness, Detect Thoughts, Knock

Level 3: Campaign Resources/Magic/Spells/Bestow Curse

Innate Spells

(WIS/Day): Disguise Self, Dancing Lights, Campaign Resources/Magic/Spells/Detect Magic, Campaign Resources/Magic/Spells/Minor Illusion, Campaign Resources/Magic/Spells/Faerie Fire, Campaign Resources/Magic/Spells/Minor Illusion, Etherealness

Race Traits

Elven Trance Active

Fey Ancestry Active

Class Traits

Witch Class, Available in Æthercoil

Spellcraft: 2/day, swap one prepared spell with another in Spellbook

Path: Uses the Nature Path as an Archetype

Nature’s Stride: On turns which Agatha only moves, she ignores Difficult Terrain.

Book of Secrets: All known spells can be cast as Rituals

Sanctum Artifact: Agatha has a cauldron that creates regional effects: Advantage on all Saves vs Magic while within 30 feet of cauldron.

Animal Form: Standard Action. Agatha can spend 2 Spell Points to transform into a Cat, Rat, Raven, or Bat. Can revert with another Standard Action. With 4 Spell Points, she can transform into a Panther or Brown Bear

Witchcraft Focus: Can create items that work only for her:

Broom: She has a broom that only she can use as a Campaign Resources/Equipment/Items/Magic Items/Broom of Flying

Background: Hag

Due to your actions or upbringing with your magic, darkness is starting to embrace you, changing you into their form. Whatever or not you were forced to do so or didn't see any other way, or you just plain dived head first into darkness's embrace, it has changed you into a hag form. It shows in your physical form, your tone of voice, the claws in your warty hands, the way you even carry yourself, the shroud of Darkness is part of you, and you do not know if you wish to resist it and find a way to redemption, or give in and see how deep you can fall and still consider yourself a person.

Background Feature: Dark Magic

Being a Hag doesn't make you much compatible in civilization. In fact, you prefer to shun the public and live alone with your thoughts, your collection, and your magic. As your actions turned you into a hag, the general public is fearful and even antagonistic toward you, and sometimes even hostile. However, the darkness within you has also given you some added feature

Characteristics

Personality: I never volunteer information, and I respond only to questions.

Ideal: Community. Loneliness is the path to Campaign Resources/Rules/One Piece 5e/DM Screen/General Rules/Adventuring/Madness. That is why I have my children to keep me company.

Bond: My house holds everything that I hold dear. I can't abide visitors who threaten my hearth and home.

Flaw: I can't resist flirting with a handsome man.

Inventory

Unarmed Attack: Claws (DEX Based, 1d6+1 slashing)

Outfit: Black Witch Gown

Focus: Component Pouch

Magic Item: Campaign Resources/Equipment/Items/Magic Items/Broom of Flying (Witchcraft Focus)

Sanctum Artifact: Caldron

Tool: Herbalism Kit

Spellbook: Contains all Witch Spells up to Level 3.