Aldra has the ability to encase people in an amber-like prison through the use of her "Evil Eye", which is located on her right side hidden under an armored eyepatch. For close combat, she wields a broadsword called the Demon's Blade and has a hidden weapon called the Secret Cleaver located in the groin area of her armor, which pays allusion to BDSM. She also has the ability to summon shikigami called Minions to slow down her opponents.
In Queen's Blade Rebellion, after losing the title of Queen to Leina (later Claudette), Delmore, the source of her powers, was stripped from her body, and reverted to her true adult form after her defeat. She later embarked on a journey to find her lost sister, but suffered from amnesia along the way. During her journey, she fell in love with a man and was later married. Her happy life was short-lived when the war between the Queen's Army and the Rebel Army spread throughout the whole Continent. To protect her beloved husband, she was determined to throw herself in the fight, and made a contract with the Underworld dwellers Belphe and Dogor (an amalgamation of the demon Belphegor). However, both demons are secretly plotting to eat Aldra when given the opportunity. Her current outfit pays homage to the "naked apron" anime stereotype that is usually found in ecchi anime and manga.
Aldra was originally a villain in The Original Queen's Blade Series but in Queen's Blade Rebellion she became one of the Heroes who defeated The Swamp Witch.
Aldra has a cat ear-like headband on her head, and a metal eye patch on her right eye. She wears a bright red outfit, with belts going across the top of it. On her left arm there are spikes protruding from her pauldron, and on her lower body she has red hip armor and a hidden blade set that functions as her undergarment. On her legs she wears red thigh-highs and interlaced bands with a beast engravement on her upper thighs, and wears metal heels with long spikes on the toe and heel.
In Rebellion she wears a red cat ear-like headband, a white apron with a red ribbon wrapped around the middle, and on her left arm she wears a golden full-length arm-guard and on her right, a red sleeve. On her legs she wears white thigh-high boots, with red diamond designs. She wears light purple lace panties.
Using the power given to her by Delmore, She has the powers of "petrifying gaze" and "flesh-rending secret." Aldra is able to capture her opponents in an amber-like stone, which she then collects as "trophies." She is also able to summon one-eyed, bat-like creatures, whom she named "Minions". She is a skilled fighter being able to maintain her leadership as Queen for two terms, although this may be attributed to Delmore's power.
She fights with her gondolier's paddle, and uses Belphe and Dogor her summons, in battle. Belphe can hold various objects for her to use, or breath fire, and Dogor is able to generate an acidic liquid that is extremely potent, able to burn through metal.