Fräulein Kreutune

Toaru Majutsu no Index · Light Novels · Unknown (Physically appears human and genetically can't be called anything but a normal human)

Powers and abilities

Superhuman Physical Characteristics
Immortality (Type 1)
Invulnerability (Unable to be harmed by conventional means)
Adaptation
Reactive Evolution
Regeneration (At least Mid-Low, could reset her spine after rotating her upper body three times and being bent into an L-shape)
microscopic substance insertion
bioelectromagnetic tracking
can eat a brain to absorb all its properties
able to see and consume pure information
Self-Sustenance (Types 1 and 2; doesn't need air, food, or water to survive)
Resistance to poison and immunity to pain

Can theoretically be made to transform into a form that can be killed through special techniques

Ranked #87 of 196 in Toaru Majutsu no Index by strength.

Fräulein Kreutune vs Rotom-Dex (Pokémon · Tier 9-B): Rotom-Dex · Slight edge
Fräulein Kreutune vs Melisandre (Game of Thrones · Tier 9-B): Fräulein Kreutune · Slight edge
Fräulein Kreutune vs Doctor Starline (Sonic · Tier 9-B): Doctor Starline · Favored
Fräulein Kreutune vs Nrvnqsr Chaos (Nasuverse · Tier 9-B): Nrvnqsr Chaos · Favored
Fräulein Kreutune vs Saint of Killers (DC · Tier 9-B): Fräulein Kreutune · Slight edge
Fräulein Kreutune vs Max (One-Punch Man · Tier 9-B): Too close to call
Fräulein Kreutune vs HK-47 (Star Wars · Tier 9-B): Fräulein Kreutune · Slight edge
Fräulein Kreutune vs Hellen Gravely (Super Mario Bros · Tier 9-B): Too close to call