He is also highly devious and a superb strategist and tactician. In prison, Bane also invented his own form of calisthenics, meditation, and a fighting style that he uses against other well-known martial arts fighters within the DC Universe. Bane creator Chuck Dixon's early tales portray Bane as a very calm, centered warrior akin to Bruce Lee; in as much that he draws strength through calm meditation and the spiritual energy of the "very rock of Peña Dura". Dixon imbued Bane with an almost supernatural quality when he explained that Bane triumphed in all of his prison fights by employing these abilities, while his opponents had only rage and greed to propel them. Multiple scenes in "Vengeance of Bane" explore this aspect when it explains that Bane's mastery of meditation techniques "made time and space playthings to him." A subsequent scene that reinforces this ability comes when Bird first comes to Bane for help because he heard from other inmates that Bane has "magic... the kind that allows him to travel beyond the prison walls." Usage of Venom enhances his physical abilities, including his strength and healing process, to superhuman levels. In most incarnations of the character, Bane requires a specialized tank to help control the amount of Venom which he injects into his body.