Tainted Blood: Constantine's blood is demoniacally tainted, initially by a blood transfusion from the demonNergal, and later by sex with a succubus. His blood has been shown to have healing properties. It has also acted as a defense mechanism when attacked by the King of the Vampires.
Bitter Taste Defense
Sorcery: Constantine is a magician but unlike most magicians, Constantine rarely uses magical spells, unless he really has to, especially in combat.
Some examples of Constantine's magic:
Divination: Used a pendulum and map to find the location of a magical disturbance.
Demon Summoning: Summoned the demon Nergal to destroy a monster for him, which it did (although John lost control, due to his inexperience).
Black Magic Cursing: Placed a curse on his father that caused him to waste away.
Spirit Ward Creation: Placed a magical sigil on a succubus that prevented the forces of Heaven and Hell from tracking her. As well as using sigils to hide himself from Satan.
Golemancy: Raised a golem.
Oculumancy: Erased a man's traumatic memories.
Necromancy: Raised a group of murder victims as zombies to attack their murderer.
Illusion: Making people think he's someone or something else. Or using Illusion to scare susceptible opponents into catatonic insanity.
Synchronicity Wave Traveling: An instinctual supernatural ability to be in the right place at exactly the right time. This has led John to uncanny luck, like winning incredible amounts of money from Arcade machines and Casinos. Avoiding harm. And more times than not - to meet the right kind of ally to help prevent or stop an apocalyptic event from happening.
Mind Control: often through the manipulation of opponents and allies.
Master Manipulator: John Constantine is an excellent con artist and negotiator. These skills are often more useful than his magical ones. Constantine faces most of his challenges relying primarily on his cunning.
Arcane Knowledge: he has vast knowledge of the occult,
Well Known: an extensive list of contacts.
Stage Magician: Constantine has also exhibited considerable mastery in "stage magic skills"
Scathing wit? It is rumored that his match has magical properties. John is almost never seen without a pack of his favorite Silk Cut cigarettes.
Chas' Taxi... much to his friend's chagrin...