- 'Power-Assist' Technology
- 'Shun Goku Satsu
- 'The Earth against One
- 1,000 Tatami Mat Leaping Imperial Deer Legs
- 3000 Day Circumambulation
- 47833-BY22
- A.T. Field
- ARMS
- AURORA FANG
- A nerve block
- A spirit binding
- Abbot Chang
- Ability
- Absolute Defense
- Absolute Eye Control
- Absolute Mathematic Sense
- Absolute Perception
- Absolute terror field
- Absorbacron
- Absorbtion Alchemy
- Aburu hi kami
- Acacia
- Acceleration Butterfly
- Achilles and Tortoise Paradox
- Acid Blast
- Aconite
- Adamantine Armor (金剛の鎧 Kongō no Yoroi)
- Adamantine Body
- Adamantine Fist
- Adamantine Kick
- Addition Mode
- Adornment of Combat
- Adravil
- Advanced Iron Cloth
- Advanced Juryokupawaa Techniques
- Advanced Ki Techniques and Training
- Aeris Strife
- Aero Biker
- Aero Hand
- Aerokinesis
- After Burner
- Ageha
- Agent Katsumi
- Agent Koiso
- Agni Schiwatas
- Agnishwattas
- Agony Matrix
- Agony matrix
- Aigyouaibu no Fushichou (Loving Caress of the Phoenix)
- Aiki
- Aikurō Mikisugi
- Ainur
- Aioui Soukoku
- Air Beam
- Air Bullets
- Air Cannon
- Air God Slayer Magic
- Air Walk
- Air Walking
- Air Walking (Jade road)
- Airbending
- Aisha Hario
- Aizen style gaifu senjutsu
- Aizono Mio
- Akane
- Akane (BGE)
- Akane Kuno
- Akane Saotome
- Akane Tendo
- Akane Tendo (Heart of the Immortal)
- Akane Tendo (Insanity Squared)
- Akane Tendo (Liquid Fighter Gold!)
- Akane Tendo (Ranma 10 ½)
- Akane Tendo (Return of the Warrior)
- Akane Tendo (Villainous Akane)
- Akane Tendo (claymade)
- Akanenniichuan
- Akari
- Akari Unryu
- Akari Unryu (claymade)
- Akaru Zassō
- Akarumii shokubai – Bright Catalyst
- Akashic
- Akashic reading
- Akeno Datenshi
- Akichi
- Akikawa Seifu
- Akiko Furakami
- Akira
- Akira Hayama
- Akira Tanabe
- Akumu Enbu
- Akuryo Taisen
- Akutō Bita
- Al Bowen
- Alchemist
- Alchemy
- Alexander Allston
- Alexander Luthor
- Alexandra Allston
- Alexandra Tokima
- Alice
- Alien FTL Systems
- Alien Shield and Stealth Systems
- Alison "A-KO" MAGAMI
- All Walls Close in and Contain Intrusion
- Altairis
- Alter
- Alter Alias
- Alter Forest
- Alter User
- Altine
- Alucard
- Amalgam
- Amalgam-fic
- Amano Ginji
- Amaterasu
- Amatsubakuha no Bouseki (Heavenly Spinning Blast)
- Amatsuooi
- Amazon Secrets
- Ambient Particle & Electron Harnessing
- Amenotejikara
- American Jiu-Jitsu
- Ametsuchi Keiyaku
- Ami Mizuno (claymade)
- Amon Natsuki
- Amplified Plasma Grenades
- Amulet
- Amulet of Banishment
- An Involuntary Movement
- Anansi's cloak
- Anatomy (あなとみ Anatomi)
- Ancient Power
- Andre Fernandez
- Angel Chakram
- Angel Dust
- Angelique d'Anjou
- Angry Goalie
- Animal User
- Anki
- Anki (HSDK)
- Anki (Memorization)
- Anki Kuroenbu
- Ankoku Rai Jin Ken
- Ankoku Yo Ro Jin
- Ankokubutō
- Ankokubutō (Kekkaishi)
- Antagonist
- Anteisei (安定性, Japanese for "equilibrium")
- Anti-Life Equation
- Anti-assassination suit
- Anti-gravity Harness
- Anti Katana Crime Division
- Anything-Goes School of Magic
- Anything Goes Silat
- Aogasumi
- Aoi Hana - Hollyhock Blossom
- Aoiro Genmu
- Aoiro Rinne
- Aoiro Sekai
- Aoriashi
- Aoyagi Mitsuru
- Apollo
- Apple Blossoms in the Wind
- Aquarion
- Aquatic Clan
- Arael…the world of Light
- Arak Tetsumi
- Aramitama
- Arashi
- Arashi Ken
- Arashi Kuramitsu
- Arashisenken
- Aratakira Meioh
- Arc Lightning
- Arc Of Time
- Arc Restraint
- Arcane Binding Arena
- Archangel
- Area Invisibility
- Arigami takomo
- Ariwara Akio
- Arm Cannon
- Armadura Fairy (妖精の鎧Yōsei no Yoroi )
- Armlock Trip
- Armor Knives
- Around the World
- Arrow of Light
- Arrows
- Art of Chaos
- Art of Focus
- Art of Madara
- Art of heavens rich strength
- Art of war
- Artemis (claymade)
- Arthur Hawkins
- Artificers
- Artistic Ink Transformation
- Arus
- Asa Kujaku
- Asami Koizumi
- Ashaton Chaos
- Ashisogi Jizō
- Ashtoreth/ Astarte
- Ashura Kai
- Ashura Sai
- Ashuraniichuan
- Asogaru
- Assassin wire
- Assassination Badminton
- Astarte Jones
- Astral Magus
- Astral Space
- Astral projection
- Asuka Hatoda
- Asuka Kuronari
- Asuka Tachibana
- Asuka Takami
- Atemi
- Atla Fayon
- Atlantians
- Atmosphere Max
- Atomic Punch
- Atsuko habiki
- Attraction & Repulsion
- Audience of the Over Road
- Aultcray Melromarc XXXII
- Aura Shift
- Authentic Strengthening Energy
- Authentic Strengthening Energy (Bousatsuken)
- Automail
- Automail Armor
- Automn Windstorm
- Awesome Taro
- Ax Hand Divides Boards
- Axis
- Aya Tendo
- Aya no Tachi Muryou Shingetsu
- Ayabe Koichi
- Ayaka Kirisaki
- Ayakashi Majiri
- Ayakawa madoka
- Ayako Yuuki
- Ayame Magami
- Ayame Magami/Possible Future
- Ayame Narazu
- Ayase Ayatsuji
- Ayase Terada
- Ayatori
- Azana
- Azmifaru’s Gauntlet
- BEATRICE 'B-KO' DAITOKUJI
- Back Breaker
- Baguazhang
- Bai Resshinken
- Baigoma
- Baisuu-Tou-Ryuu (Multiple-Sword-Style)
- Bajiquan
- Bakuge
- Bakugyuto
- Bakugōken
- Bakuha no Bouseki (Spinning Blast)
- Bakuriyuusan Yadan (Demon Vanishing Barrier)
- Bakuryūha
- Bakusai Rei Hari
- Bakusai Tenketsu Revised
- Bakusai Tenketsu Tensai
- Bakusai Tenketsu Wave
- Bakusai Tsuki
- Bakutanken
- Bakutanken (Kuremisago Style)
- Balalaika
- Balance of Heaven Bo Style (Kinkou no Kouten Bo kata)
- Ballistic Telekinesis
- Balloon
- Balm (claymade)
- Bamboo Javelin
- Ban Mido (Third Generation Get Backers)
- Ban lo
- Banach Tarski Paradox
- Banishing Kill
- Banjin Houru (Savage Throw)
- Banmachōbuku
- Banrai Nagare
- Banryuu Houten
- Banshee
- Banshō Ten'in
- Banter of the Azure Sky Dragon
- Bara
- Barrier
- Basaltic Fist
- Basara
- Basil
- Batsuzangaisei Ceremony
- Batter Strike
- Battle Aura
- Battle Aura (Sumomomo Momomo)
- Battle Axe
- Beam Fall Down to Earth Pin
- Beam saber
- Beast
- Beast Boy
- Beast Sealing Technique
- Bee Clone
- Beetle Armor
- Bee~Snow~Moon
- Bei Takana
- Bekutoru Henkan
- Believable knowledge level
- Belldandy
- Belmarinkal Saima
- Belucius Ro
- Bending Arts
- Beneda
- Benihime
- Benimaru Shinmon
- Benishidare
- Bermuda athport
- Berserker Rage
- Bestia
- Beta-tech
- Beta technology
- Betsudoutai (Detached Force)
- Biff
- Biff Wellington
- Bikochu Beetle
- Bio-Leech
- BioPlant
- Biograft Spray
- Bionic compressor
- Biotech personal body armor
- Bird of Death Fist
- Bird of Illusion
- Birds
- Bishamonten
- Bitō Kanzashi
- Black Blood
- Black Claw
- Black Cocoon
- Black Condor
- Black Cross
- Black Death Peacock
- Black Dragon
- Black Dragon (Konton Ketsueki )
- Black Dragons
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