30. Poison Ivy (77 points)
While attending college Pamela Isley, a brilliant botany student, is seduced by her science teacher, Dr. Jason Woodrue (Floronic Man), and convinced to become the integral part in his plant-toxin experiments. Unknown to a young and trusting Isley, Dr. Woodrue introduced deadly toxins into her bloodstream that fused with her very essence, turning her into something beyond human. Strangely, this gave Isley a resistance to all poisons but it also gave her a poisonous touch and the infamous deadly poisoned kiss.
With these new found abilities Isley would wreak havoc in Gotham City by committing crimes of eco-terrorism and crimes of passion, a passion held mainly for the Batman, who continues to spurn the seductive and deadly desires of Poison Ivy.
Since she is immune to all kinds of toxins and poisons, Ivy often uses these as weapons. The very touch of her skin can poison a normal person. She has also developed several toxins which serve for different purposes, including a truth serum and a love potion. She's also able to manipulate people using her special pheromones. Poison Ivy also has complete control over plants, allowing her to control them, create hybrid-like plants, as well as animate plants.
She has a special relationship with plants. She treats them as if they were her children and they respond to her will and command. Also, her expertise as a Bio Chemist has allowed her to develop mutant plants and to bring to life plants that were thought to be extinct.
29. Ultra-Humanite (80 points- 3 first place slots)
"whether he's an old man, a great white ape, or a smoking hot 1940s starlet, the U-H always poses HUGE problems for Earth's greatest teams; the first ever comic book "mad scientist" super-villain, and a foe to be reckoned with even today"
I love quoting you voters.
Originally an old fragile human male with advanced intellect, the Ultra-Humanite was one of Superman's first foes.
After Crisis on Infinite Earths, Superman's history was rewritten in The Man of Steel miniseries, and the Earth-Two Superman was removed from continuity. However, the Ultra-Humanite was excluded from Superman's reboot, and his post-Crisis history remained tied to the 1940s and to the Justice Society of America and All-Star Squadron. .
The Ultra-Humanite's most ambitious scheme occurs in the "Stealing Thunder" JSA comic storyline, where, in the aged body of Johnny Thunder, he deceives Jakeem Thunder into handing over his magical pen. With the power of the omnipotent Thunderbolt, Ultra-Humanite first restores his body's youth, and then proceeded to take over the world. Under his rule, Earth is transformed into essentially a single mind, with nearly every meta-human becoming an extension of the Ultra-Humanite.
However, a select few heroes manage to escape the control of the Ultra-Humanite: Jakeem Thunder, Captain Marvel, Hourman, the third Crimson Avenger, Power Girl, Sand, and the second Icicle. Wildcat and Hector Hall are also free--Wildcat as an apparent side effect of his 'nine lives', and Hall so that he could summon the garb of Doctor Fate and thus provide the Ultra-Humanite with access to Nabu's power. However, both are held captive by the Ultra-Humanite. The Ultra-Humanite is killed by the Crimson Avenger (although the Icicle nearly beats her to it) as revenge for the death of the first Crimson Avenger, who dies earlier in an explosion triggered by the Ultra-Humanite.
After the Infinite Crisis, the surviving actress Dolores Winters returns as a criminal in her own right in the pages of JSA Classified. Still later, the Delores Winters-version of Ultra-Humanite is rescued from a prison hospital by parties unknown and apparently brought to the future, where the villain was mentioned as attempting to acquire a Mento-helmet in Justice League of America vol. 2 #1. Later, her brain is removed and placed in the body of an albino ape born in Gorilla City, resuming the classic Ultra-Humanite appearance. He is seen working with Per Degaton, Black Beetle, and Despero. In Booster Gold #5, it is revealed that they are the ones behind Rex Hunter and Supernova's time-altering tactics, as members of the group calling themselves the "Time Stealers".
28. Professor Zoom/Reverse Flash (84 points)
"the (arguably) greatest Flash's greatest enemy and opposite number, who also starred in the only other arguable greatest Flash's greatest story; Eobard Thawne is smart, mad, and ruthless, a super-speed stone killer"
Discovering a time satellite sent into the 25th Century which contained one of Barry Allen's Flash costumes, Eobard Thawne used his era's science to amplify the costume's super-speed wave patterns to give himself super-human speed. Intending to use the costume to commit crime, instead of stop crime, Thawne reversed the colors of the costume, dubbing himself the Reverse-Flash.
Thawne would travel to the 20th century on several occasions to do battle with the Flash. He became obsessed with the scarlet speedster to the point of impersonating him and trying to assume the identity of Barry Allen, including his relationship with Iris West.
Rejected by Iris, Thawne killed her, and the ensuing battle with the Flash left him trapped in another dimension. Returning he attempted to kill Allen's new fiancé Fiona Webb, forcing Allen to take his life in order to save her. Allen would later perish during the Crisis on Infinite Earths.