Doedre Stamatis was a thaumuturgist and Maligaro's pupil. When Maligaro cut her tongue off, she embraced her loss and took on the surname Darktongue and took on an innovative mean of spellcasting -- from the theme of items, presumably curses. 
Doedre is battled several times in the storyline:
Furthermore she can be encountered in the following maps:
- Doedre's DamningDoedre's Damning
Paua Ring+(20-30) to maximum Mana+(5-10) to Intelligence
+5% to all Elemental Resistances
+5 Mana gained on Kill
You can apply an additional CurseWhere her mouth should have been there was only a whirling, black void.
- Doedre's ElixirDoedre's Elixir
Greater Mana FlaskRecovers 120 Mana over 4.00 seconds
Consumes (19-22) of 36 Charges on useRequires Level 12(120-150)% increased Charges used
Removes 20% of your maximum Energy Shield on use
You take 10% of your maximum Life as Chaos Damage on use
You gain a Power Charge on use
You gain a Frenzy Charge on use
You gain an Endurance Charge on useDoedre Darktongue knew the Way of the Thaumaturge.
In order to receive, one must give... without hesitation.Right click to drink. Can only hold charges while in belt. Refills as you kill monsters.
- Doedre's ScornDoedre's Scorn
Lunaris CircletQuality: +20%
Energy Shield: (165-189)Requires Level 39, 83 Int+2 to Level of Socketed Curse Gems
+(20-30) to Intelligence
+(100-120) to maximum Energy Shield
20% increased Elemental Damage
(10-20)% increased Damage with Hits and Ailments per Curse on Enemy
Curse Skills have (30-50)% increased Skill Effect DurationA scar of the flesh you'll never forget,
A scar of the mind you'll never remember.
- Doedre's TenureDoedre's Tenure
Velvet GlovesQuality: +20%
Energy Shield: 49Requires Level 12, 21 Int+20 to Intelligence
(50-60)% increased Spell Damage
15% reduced Cast Speed
+32 to maximum Energy ShieldWhile Doedre lacked Maligaro's sense of style,
she surpassed her master in pure malevolence.
- Doedre's SkinDoedre's Skin
Widowsilk RobeQuality: +20%
Energy Shield: (375-405)
Movement Speed: -3%Requires Level 65, 187 IntSocketed Gems are Supported by Level 20 Blasphemy
Grants Level 20 Summon Doedre's Effigy Skill
Socketed Curses are Triggered by Doedre's Effigy when Summoned
Socketed Curses ignore Curse Limit
+(30-40) to Intelligence
(130-150)% increased Energy Shield
Socketed Curses have 25% reduced Effect (Hidden)As she was sentenced to death, Doedre was silent.
As she was tied to the stake, Doedre was silent.
As the flames licked away her life, Doedre was silent.
But Wraeclast had not heard the last of her.
- Doedre's Tenure - While Doedre lacked Maligaro's sense of style, she surpassed her master in pure malevolence.
- Doedre Darktongue - Steam Trading Card description