Once safely away from Batman back at the Militia HQ, Scarecrow broadcasted a message to all of Gotham, demanding Batman's attention. Forming a deadly partnership, the pair eventually set up shop within the abandoned and condemned ruins of the Arkham Mansion after Arkham City's shutdown and To this end, Scarecrow exploited the criminal underworld's new landscape that surfaced when the Joker passed away during the events of Arkham City and took complete control over the power vacuum that was left in place of the Clown Prince of Crime. Baffled, Scarecrow asked if Batman could understand it's over. He performed successful experiments on phobic substitution, and was a frequent visitor at Blackgate Penitentiary and later became the head physician of Arkham Asylum where he gave out advertisements on curing phobias and other psychological issues related to the subject. He then watched as Batman began writhing in agony as the toxin began taking hold on his mind.

Penguin, Two-Face, Riddler, even poor Harley. It was necessary.
Once the plant was out, Batman headed off to destroy the Cloudburst. Of the various Arkham collections published so far, Scarecrow's may be the most fascinating due to the how goofy this classic villain was during his inception. Other believed he was simply wearing a mask, due to the quality of the surgery.

To get the free app, enter your mobile phone number. As part of his twisted mind games, Scarecrow has placed Barbara in his gassing chamber back in Chinatown. In retaliation for making Batman activate the collar, Croc badly mauled Crane's face. After he fought through the last of the militia, Batman located a tied up Gordon and was confronted by the Knight for a final showdown. The commander finally revealed his true face and identity to Batman; After he named himself after the facility in which he was tortured, Jason traveled the globe to perfect his skills and recruited others to be trained in Batman's abilities. As Combs saw horrifying visions of the deaths of his family, security arrived and captured Crane, who noted that it was impossible to continue his research with the Arkham staff impeding him at every step. After he was captured and released, Crane may have had to scavenge for materials to complete the costume that was seen in the game. With the Arkham Knight's immense militia, Scarecrow took complete control of the city and used his men, tanks, and helicopters to patrol the streets. After he managed to both defeat and reach out to Jason before the latter escaped once again, Batman freed Gordon and they both made their way to the roof to finally confront Scarecrow. This leads to the successful destruction of the Batmobile, by the Knight's giant excavator. However, Scarecrow jabbed his syringes into Batman's gauntlet, giving the Dark Knight more Fear Toxin to fight off. As Batman never responded to him, Scarecrow began wondering aloud if the Dark Knight's mask helped push down any actual emotion that he should be feeling. His mask had been altered into a cowl with the aesthetics of a hood and a noose, and acted as a gas mask. Batman braved the fear toxin cloud, refitting the Batmobile with the Cell, and went to help release third plant to clear the toxin. Suffering a psychopathic breakdown after being kicked out of the university, he renounced his previous identity and donned his alter ego known as the Scarecrow, using his toxin and knowledge to fulfill his revenge against the faculty members responsible for his suspension. Batman took out the drones escorting the Knight's tank, one-by-one; each time, Scarecrow ordered the Knight to make a strategic retreat. However, Batman smashed his head against the control panel, and demanded to know how the Fear Toxin could be stopped. Scarecrow continued watching these events, seeing Batman drag the Knight out of his tank and onto a rooftop. Even when being face-to-face to a wildly angered Batman, Detective Mode proved that Scarecrow was still calm. Once Batman left, Scarecrow waited until the gas in the room faded before sending in the Militia to collect Barbara from the gassing chamber. Scarecrow's vision of terror after he was injected with his own Fear Toxin by Batman at the Arkham Mansion.To Scarecrow's shock, Batman flatly told him he wasn't scared.

Close. Revealing that the Arkham Knight's forces had attacked Oracle at the Clock Tower, having been informed by the Knight that she had been working for Batman for years, Crane escaped and locked Batman within the chamber to die. Joker planned to complete the Titan Formula and use it to create an army of monsters under his control to destroy Gotham and finish his battles with Batman, while Crane lusted to create and use an enhanced serum of his fear toxin to break the mind of every Gotham citizen forever and finally expose Batman's greatest fears. Lusting to create an enhanced version of his fear gas and force Batman to succumb to his fears, Crane's moment of opportunity presented itself when Warden Scarecrow himself learned of Dr. Young's plans and ambitions during their various therapy sessions together, where Crane's brilliance in both chemistry and psychology gained deep respect from the naive woman. He believed that since fear kept people from fulfilling their everyday lives, he would need to minimize those fearful impulses, and by doing so, his patients would achieve peace if they wanted to be the best.