Acquired Immunity

Acquired Immunity
The Joker (DC Comics) has manufactured so much of his personal toxin, Joker venom, over the years that repeated exposure has given him immunity to it.
Power/Ability to:	Develop immunity over time.

The power to develop immunity over time. Sub-power of Adaptive Metabolism and Ability Creation. Variation of Immunity and Power Acquirement.

Also Called

• Antifragility
• Developed/Reactive Durability/Cancellation/Imperviousness/Invulnerability/Insulation/Nullification/Proof/Protection/Tolerance
• Developed/Reactive-Immunity/Proof/Proofness/Development/Buildup

Capabilities

The user is able to develop immunity to detrimental factors (elements, effects, powers, objects, etc.) through exposure to such things. The time frame can vary from repeated long-term exposure to just being exposed once before developing the immunity.

Applications

Low Level

• High Resistance
• Power Resistance

High Level

• Alcohol Immunity
• Contaminant Immunity
• Power Immunity

Techniques

• Damage Memorization

Variations

• Pathogen Carrying
• Reactionary Immunity

Associations

• Adaptive Metabolism
• Adaptive Regeneration
• Immunity

Limitations

• May take time to build up immunities.
• Power cannot be activated if the user is killed by immediate exposure.
• Omni-Absorption/Almighty Absorbing Replication/Immunity Bypassing/Power Negation are the perfect counters.
• May not last forever.

Known Users

See also: Acquired Poison Immunity.

• Tatsumi (Akame Ga Kill)
• Marley Archer (Archer)
• Sterling Archer (Archer)
• Immortals (Baccano)
• Yuujiro Hanma (Baki the Grappler)
• Baki Hanma (Baki the Grappler)
• Askin Nakk Le Vaar (Bleach)
• Joker (DC Comics); to Joker Venom
• Pamela Isley/Poison Ivy (DC Comics)
• Slade Wilson/Deathstroke (DC Comics)
• Scarecrow (DC Comics); to Fear Toxin
• Draconis (Marvel Comics)
• Jessica Drew/Spider-Woman (Marvel Comics)
• Peter Parker/Spider-Man (Marvel Comics)
• Steve Rogers/Captain America (Marvel Comics)
• Naruto Uzumaki (Naruto/Boruto)
• Venom (Marvel Comics)
• Pickles (Metalocalypse)
• Westley (The Princess Bride); to Iocaine Powder
• Alex Mercer (Prototype)
• Marisa Kirisame (Touhou Project)
• Katherine Pierce (The Vampire Diaries)
• Issei Hyoudou (High School DxD)
• Rimuru Tempest (That Time I Got Reincarnated as a Slime)

Known Objects

• Cure-All Elixir (Baccano)
• Grand Panacea (Baccano)
• Super-Soldier Serum (Marvel Comics)

Gallery

Due to his prolonged exposure to it, Scarecrow (Batman: Arkham Knight) has built up a partial immunity to his own fear toxin.

Repeated exposure to sonic vibrations has allowed the Venom symbiote (Marvel Comics) to build up an immunity to them.

Draconis (Marvel Comics) has developed immunity to all traditional vampire weaknesses like holy symbols and sunlight with small gradual exposures to it.

After all the times he's been a victim of mind control and telepathy, Peter Parker/Spider-Man (Marvel Comics) has developed a partial immunity in the form of multiple copies of himself, which viciously attack anyone who invades his mind.

Pickles (Metalocalypse) has developed an immunity to virtually all drugs as a result of smoking "government weed" daily since the age of six.

Monkey D. Luffy (One Piece) developed an immunity to most toxins and deadly poisons after being exposed to Magellan's poison and nearly dying.

Alex Mercer (Prototype) was able to build up an immunity to Bloodtox, an anti-Blacklight toxin, with repeated exposure.

Katherine Pierce (The Vampire Diaries) has built up an immunity to vervain by repeatedly drinking fluids laced with the herb.

Issei Hyoudou (High School DxD) through constant bombardment by Tannin's flames that are powerful enough to rival a meteor at max strength, developed a high resistance to regular flames, taking ones from a Dragon or Phoenix to hurt him.