- AC-1 Hammer Bot
- AC-2 Rivet Bot
- ATMG
- Abaddon
- Abbreviations
- Abomination
- Absolute Zero
- Absolution
- Abyss
- Abyss Knight
- Abyssus
- Achilios' Wake
- Acid Beast
- Acid Beasts
- Acid Fiends
- Acid Prince
- Acidblood
- Acidburn
- Act I
- Act II
- Act III
- Act IV
- Act V
- Adamantine Guard
- Adder
- Addertongue
- Adjudicator
- Adramelech
- Adrenaline Rush
- Adria's Circle
- Advent of Hatred
- Aegina
- Aegipan
- Aerin Nexus
- Aerin Orbiter
- Aes Dana
- Aeterna
- Aether
- Afrit
- Ahriman
- Aidan's Lament
- Aiden's Lament
- Aiwass
- Akara
- Akarat
- Akarat's Crucifix
- Akarat's Nails
- Akarat's Trek
- Akhenaten
- Al'Diabalos, the Lord of Terror
- Al Dhih
- Al Hazir's Quillholder
- Al Nair
- Al Nath
- Albrecht's Heirloom
- Albrecht's Revenge
- Albrecht's Slumber
- Alchemist Apron
- Alchemy
- Algiz
- Alkor
- Alnair
- Alpha
- Alpha Centaur
- Amanita
- Amaterasu
- Amatoxin
- Amaymon
- Amazon
- Amazon Sets
- Amazon Warrior
- Ambush
- Amok
- Amphibian
- Anak
- Anarchy
- Ancient Blood
- Ancient Branch
- Ancient Giant
- Ancient Tunnels
- Ancients' Hand
- Andariel
- Andariel, the Maiden of Anguish
- Angel's Wrath
- Angel Bag
- Angel Heart
- Angel of Death
- Angelhost
- Angler's Hook
- Ankheg
- Anthem De Frost
- Antimass
- Anya
- Apocalypse
- Apocalypta
- Apostasy
- Apple
- Araboth
- Arachnid Lair
- Arachnomancy
- Arachnophilia
- Arcane Crystal
- Arcane Protection
- Arcane Sanctuary
- Arcane Swarm
- Arcane Toad
- Arcane Torrent
- Archangel
- Archbishop Lazarus
- Archbishop Lazarus (boss)
- Archbishop Lazarus (set)
- Archon
- Archon's Wrath
- Argentek's Tide
- Arihan's End
- Arkaine's Valor
- Arkenstone
- Armageddon Knight
- Armor of the Old Religion
- Armored Titan
- Arnazeus Pinnacle
- Arreat's Heart
- Arreat's Snowcap
- Arreat Plateau
- Arreat Summit
- Arreat Summit (past)
- Arrow Swarm
- Arrowsider
- Artifice Mastery
- Asatruar
- Asclepion
- Asgardsreia
- Ash Troll
- Ashaera's Armor
- Asheara
- Asheara's Cateye
- Ashenwind
- Askarbydd
- Askari Call
- Askari Device
- Asmodai
- Aspect
- Assailant
- Assamite
- Assassin
- Assassin (monster)
- Assassin Sets
- Assur
- Astarte
- Asterism
- Astral Blade
- Astreon's Citadel
- Astrogha
- Astrogha's Eye
- Astrogha's Venom Stinger
- Asymptomatic
- Atanna's Key
- Atanna Khan
- Atanna Khan's Dress
- Athulua's Command
- Athulua's Oracle
- Athulua's Wrath
- Athulua, the Amazonian Goddess
- Atlacamani
- Atlantis
- Atma
- Atomus
- Augur
- Augur's Pelt
- Auriel's Halo
- Auriel's Robe
- Aurumvorax
- Auto Da Fe
- Avalanche
- Avalanche (monster)
- Avatar
- Axekicker
- Azgar's Mark
- Azgar's Nemeton
- Azmodan's Heart
- Azmodan, Lord of Sin
- Azrael
- Azure Drake
- Baal
- Bacchanalia
- Backstab
- Bad Mood
- Bag of Tricks
- Balance
- Balance (runeword)
- Balefire
- Ballantine's 1827
- Ballista
- Balrog
- Bane
- Bane (runeword)
- Bane Hunter
- Bane Monster
- Bane of the Horadrim
- Baneblade
- Banecat
- Banish
- Banner of Bitter Winds
- Banner of Duncraig
- Banshee
- Banshee (runeword)
- Barbarian
- Barbarian Sets
- Barghest's Howl
- Baron Sludge's Bonecrusher
- Barracks
- Barrage
- Barrier Strike
- Bartuc
- Bartuc's Curse
- Bartuc's Eye
- Base Armors
- Base Items
- Base Weapons
- Basilisk
- Bastion of the Triune
- Bathos
- Batstrike
- Battle Rage
- Battlemaiden
- Beacon
- Beads of the Snake King
- Beads of the Snake Queen
- Beanie Sidhe
- Bear Claw
- Bear Claw Nova
- Bear Grin
- Bear Shaman
- Bear Stance
- Belial, Lord of Lies
- Bellifortis
- Belly of the Beast
- Bend the Shadows
- Bergkaiser
- Berith
- Berserrker
- Bestiary
- Beta
- Beyond the Veil
- Big Bad
- Big Game Hunter
- Bilefroth the Pit Master
- Binding Treads
- Bitter Harvest
- Black Abyss
- Black Baboon
- Black Cat
- Black Cat (weapon)
- Black Death
- Black Dog
- Black Doom
- Black Dwarf
- Black Flame
- Black Hand Sigil
- Black Hand Totem
- Black Ice Demon
- Black King Bar
- Black Knight
- Black Lotus Strike
- Black Marsh
- Black Masquerade
- Black Mass (legacy)
- Black Razor
- Black Sheep Wall
- Black Sun Spear
- Black Void
- Blackash the Burning
- Blackened
- Blackheart
- Blackjade's Legacy
- Blackstorm
- Blacktongue
- Blade Barrier
- Blade Spirits
- Blade of the Jitan
- Bladestorm
- Blast Wave
- Blessed Life
- Blessed Wrath
- Blightfire
- Blind Anger
- Blink
- Blinky
- Block and Defense
- Blood Bengal
- Blood Flash
- Blood Fury
- Blood Golem
- Blood Hatred
- Blood Hunter
- Blood Knight
- Blood Marquis
- Blood Moor
- Blood Prince
- Blood Raven
- Blood Rogue
- Blood Skeleton
- Blood Stinger
- Blood Stone
- Blood Thorns
- Blood Warrior
- Bloodbath
- Bloodbond
- Bloodbrother
- Blooddancer
- Bloodfire Rogue
- Bloodlust
- Bloodmoon Soulfire
- Bloodskin Darkbow
- Bloodslayer
- Bloodspeaker's Mark
- Bloodstar
- Bloodstorm
- Bloody Foothills
- Blur
- Boarfrost
- Body of the Savior
- Bogspitter
- Bona Dea
- Bone Archer
- Bone Gasher
- Bone Gasher (Sword)
- Bone Golem
- Bone Mage
- Bone Scalpel
- Bone Sorcerer
- Bone Warlock
- Bone Warrior
- Bonechewer
- Bonefiend
- Bonegrinder
- Bonehexer
- Bonerattler
- Bonestorm
- Boneyard
- Boneyard Scourge
- Book of Lies
- Borgin's Vigil
- Boss Crow
- Bottled Will-o-Wisp
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