The Brothers' War Collector Booster has variants:
Explore this pack in Sealed.

Sheets

Sheet foil_fullart_basic

At rate 1/10 (10.0%)
Forest
Forest
Island
Island
Mountain
Mountain
Plains
Plains
Swamp
Swamp

Sheet foil_common

At rate 1/101 (0.99%)
Aeronaut Cavalry
Aeronaut's Wings
Air Marshal
Airlift Chaplain
Ambush Paratrooper
Argothian Opportunist
Argothian Sprite
Ashnod's Intervention
Bitter Reunion
Blanchwood Prowler
Blitz Automaton
Boulderbranch Golem
Burrowing Razormaw
Carrion Locust
Citanul Stalwart
Clay Revenant
Coastal Bulwark
Combat Courier
Conscripted Infantry
Curate
Deadly Riposte
Depth Charge Colossus
Desynchronize
Disenchant
Disfigure
Dredging Claw
Dwarven Forge-Chanter
Emergency Weld
Energy Refractor
Epic Confrontation
Evolving Wilds
Excavation Explosion
Fallaji Archaeologist
Fallaji Chaindancer
Fog of War
Gaea's Gift
Giant Growth
Gix's Caress
Gixian Infiltrator
Gixian Skullflayer
Gnarlroot Pallbearer
Goblin Blast-Runner
Goblin Firebomb
Goring Warplow
Hoarding Recluse
Kill-Zone Acrobat
Koilos Roc
Lat-Nam Adept
Loran's Escape
Machine Over Matter
Mightstone's Animation
Military Discipline
Mine Worker
Mishra's Domination
Mishra's Juggernaut
Mishra's Onslaught
Moment of Defiance
Overwhelming Remorse
Penregon Strongbull
Perimeter Patrol
Phalanx Vanguard
Power Plant Worker
Powerstone Engineer
Powerstone Fracture
Prison Sentence
Ravenous Gigamole
Raze to the Ground
Recommission
Retrieval Agent
Roc Hunter
Rust Goliath
Scatter Ray
Scrapwork Cohort
Scrapwork Mutt
Scrapwork Rager
Shoot Down
Sibling Rivalry
Stern Lesson
Stone Retrieval Unit
Supply Drop
Survivor of Korlis
Swiftgear Drake
Tawnos's Tinkering
Third Path Savant
Thraxodemon
Tocasia's Dig Site
Tocasia's Onulet
Tomakul Honor Guard
Tomakul Scrapsmith
Tower Worker
Trench Stalker
Union of the Third Path
Unleash Shell
Urza's Rebuff
Veteran's Powerblade
Warlord's Elite
Wasteful Harvest
Weakstone's Subjugation
Whirling Strike
Wing Commando
Yotian Medic

Sheet foil_uncommon

At rate 1/80 (1.25%)
Alloy Animist
Arbalest Engineers
Argivian Avenger
Arms Race
Ashnod's Harvester
Audacity
Battery Bearer
Battlefield Butcher
Blanchwood Armor
Bushwhack
Calamity's Wake
Combat Thresher
Corrupt
Cradle Clearcutter
Defabricate
Demolition Field
Disciples of Gix
Dreams of Steel and Oil
Evangel of Synthesis
Fallaji Dragon Engine
Fallaji Excavation
Fallaji Vanguard
Flow of Knowledge
Forging the Anchor
Gaea's Courser
Giant Cindermaw
Gnawing Vermin
Go for the Throat
Great Desert Prospector
Gruesome Realization
Gurgling Anointer
Haywire Mite
Heavyweight Demolisher
Hero of the Dunes
Horned Stoneseeker
Hulking Metamorph
Involuntary Cooldown
Iron-Craw Crusher
Junkyard Genius
Keeper of the Cadence
Lay Down Arms
Levitating Statue
Loran, Disciple of History
Mask of the Jadecrafter
Mass Production
Meticulous Excavation
Mishra's Research Desk
Mishra, Excavation Prodigy
Monastery Swiftspear
No One Left Behind
Obliterating Bolt
Obstinate Baloth
Pyrrhic Blast
Reconstructed Thopter
Recruitment Officer
Repair and Recharge
Sardian Cliffstomper
Sarinth Steelseeker
Skyfisher Spider
Slagstone Refinery
Spectrum Sentinel
Splitting the Powerstone
Spotter Thopter
Static Net
Steel Exemplar
Su-Chi Cave Guard
Symmetry Matrix
Take Flight
The Fall of Kroog
Third Path Iconoclast
Thopter Architect
Thopter Mechanic
Thran Power Suit
Thran Vigil
Transmogrant Altar
Urza, Powerstone Prodigy
Yotian Dissident
Yotian Frontliner
Yotian Tactician
Zephyr Sentinel

Sheet foil_rare_mythic

At rate 2/149 (1.34%)
Argoth, Sanctum of Nature
Titania, Gaea Incarnate
Ashnod, Flesh Mechanist
Autonomous Assembler
Battlefield Forge
Blast Zone
Brotherhood's End
Brushland
Deathbloom Ritualist
Diabolic Intent
Drafna, Founder of Lat-Nam
Fade from History
Fateful Handoff
Fauna Shaman
Feldon, Ronom Excavator
Fortified Beachhead
Gix's Command
Gixian Puppeteer
Gwenna, Eyes of Gaea
Hajar, Loyal Bodyguard
Hall of Tagsin
Harbin, Vanguard Aviator
Hostile Negotiations
Hurkyl's Final Meditation
Hurkyl, Master Wizard
Kayla's Command
Kayla's Reconstruction
Legions to Ashes
Liberator, Urza's Battlethopter
Llanowar Wastes
Loran of the Third Path
Mechanized Warfare
Misery's Shadow
Mishra's Command
Mishra's Foundry
Mishra, Tamer of Mak Fawa
Over the Top
Painful Quandary
Perennial Behemoth
Phyrexian Dragon Engine
Mishra, Lost to Phyrexia
Queen Kayla bin-Kroog
Razorlash Transmogrant
Siege Veteran
Simian Simulacrum
Skystrike Officer
Soul Partition
Steel Seraph
Tawnos, the Toymaker
Teething Wurmlet
Terisian Mindbreaker
The Mightstone and Weakstone
Urza, Planeswalker
The Stasis Coffin
The Stone Brain
The Temporal Anchor
Thran Spider
Titania's Command
Tocasia's Welcome
Tocasia, Dig Site Mentor
Transmogrant's Crown
Tyrant of Kher Ridges
Underground River
Urza's Command
Urza, Prince of Kroog
Visions of Phyrexia
At rate 1/149 (0.67%)
Arcane Proxy
Awaken the Woods
Bladecoil Serpent
Cityscape Leveler
Clay Champion
Draconic Destiny
Gix, Yawgmoth Praetor
In the Trenches
Mishra, Claimed by Gix
Mishra, Lost to Phyrexia
Myrel, Shield of Argive
One with the Multiverse
Phyrexian Fleshgorger
Platoon Dispenser
Portal to Phyrexia
Rootwire Amalgam
Saheeli, Filigree Master
Sarinth Greatwurm
Skitterbeam Battalion
Surge Engine
Teferi, Temporal Pilgrim
Titania, Voice of Gaea
Titania, Gaea Incarnate
Urza's Sylex
Urza, Lord Protector
Urza, Planeswalker

Sheet extended_rare_mythic

At rate 2/125 (1.6%)
Ashnod, Flesh Mechanist
Autonomous Assembler
Blast Zone
Brotherhood's End
Deathbloom Ritualist
Diabolic Intent
Drafna, Founder of Lat-Nam
Fade from History
Fateful Handoff
Fauna Shaman
Feldon, Ronom Excavator
Fortified Beachhead
Gix's Command
Gixian Puppeteer
Gwenna, Eyes of Gaea
Hajar, Loyal Bodyguard
Hall of Tagsin
Harbin, Vanguard Aviator
Hostile Negotiations
Hurkyl's Final Meditation
Kayla's Command
Kayla's Reconstruction
Legions to Ashes
Liberator, Urza's Battlethopter
Loran of the Third Path
Mechanized Warfare
Misery's Shadow
Mishra's Command
Mishra's Foundry
Over the Top
Painful Quandary
Perennial Behemoth
Queen Kayla bin-Kroog
Razorlash Transmogrant
Siege Veteran
Simian Simulacrum
Skystrike Officer
Soul Partition
Steel Seraph
Tawnos, the Toymaker
Teething Wurmlet
Terisian Mindbreaker
The Stasis Coffin
The Stone Brain
The Temporal Anchor
Thran Spider
Titania's Command
Tocasia's Welcome
Tocasia, Dig Site Mentor
Transmogrant's Crown
Tyrant of Kher Ridges
Urza's Command
Visions of Phyrexia
At rate 1/125 (0.8%)
Arcane Proxy
Awaken the Woods
Bladecoil Serpent
Cityscape Leveler
Clay Champion
Draconic Destiny
Gix, Yawgmoth Praetor
Hurkyl, Master Wizard
In the Trenches
Myrel, Shield of Argive
One with the Multiverse
Phyrexian Fleshgorger
Platoon Dispenser
Portal to Phyrexia
Rootwire Amalgam
Sarinth Greatwurm
Skitterbeam Battalion
Surge Engine
Urza's Sylex

Sheet extended_commander_jumpstart

At rate 1/29 (3.45%)
Artificer's Dragon
Blast-Furnace Hellkite
Disciple of Caelus Nin
Farid, Enterprising Salvager
Geology Enthusiast
Glint Raker
Hexavus
Kayla's Music Box
Machine God's Effigy
March of Progress
Rescue Retriever
Sanwell, Avenger Ace
Sardian Avenger
Scavenged Brawler
Scholar of New Horizons
Smelting Vat
Staff of Titania
Terisiare's Devastation
Terror Ballista
The Archimandrite
Thopter Shop
Urza's Workshop
Wire Surgeons
Wondrous Crucible
Woodcaller Automaton
Wreck Hunter
At rate 1/58 (1.72%)
Ashnod the Uncaring
Mishra, Eminent One
Rootpath Purifier
Tawnos, Solemn Survivor
Titania, Nature's Force
Urza, Chief Artificer

Sheet brr_retro_artifact_uncommon

At rate 1/18 (5.56%)
Bone Saw
Burnished Hart
Chromatic Star
Elsewhere Flask
Foundry Inspector
Ichor Wellspring
Ivory Tower
Jalum Tome
Liquimetal Coating
Millstone
Mishra's Bauble
Ornithopter
Pristine Talisman
Self-Assembler
Sigil of Valor
Soul-Guide Lantern
Springleaf Drum
Swiftfoot Boots

Sheet brr_schematic_rare_mythic

At rate 2/75 (2.67%)
Adaptive Automaton
Ashnod's Altar
Astral Cornucopia
Blackblade Reforged
Chromatic Lantern
Cloud Key
Defense Grid
Door to Nothingness
Gilded Lotus
Goblin Charbelcher
Howling Mine
Inspiring Statuary
Journeyer's Kite
Keening Stone
Key to the City
Lodestone Golem
Mazemind Tome
Phyrexian Revoker
Precursor Golem
Psychosis Crawler
Quicksilver Amulet
Quietus Spike
Runechanter's Pike
Scrap Trawler
Sculpting Steel
Semblance Anvil
Sword of the Meek
Thorn of Amethyst
Unwinding Clock
Well of Lost Dreams
At rate 1/75 (1.33%)
Aetherflux Reservoir
Altar of Dementia
Caged Sun
Helm of the Host
Mesmeric Orb
Mind's Eye
Mox Amber
Mystic Forge
Perilous Vault
Phyrexian Processor
Platinum Angel
Ramos, Dragon Engine
Staff of Domination
Sundering Titan
Wurmcoil Engine

Sheet foil_brr_retro_artifact_schematic_uncommon

At rate 5/108 (4.63%)
Bone Saw
Burnished Hart
Chromatic Star
Elsewhere Flask
Foundry Inspector
Ichor Wellspring
Ivory Tower
Jalum Tome
Liquimetal Coating
Millstone
Mishra's Bauble
Ornithopter
Pristine Talisman
Self-Assembler
Sigil of Valor
Soul-Guide Lantern
Springleaf Drum
Swiftfoot Boots
At rate 1/108 (0.93%)
Bone Saw
Burnished Hart
Chromatic Star
Elsewhere Flask
Foundry Inspector
Ichor Wellspring
Ivory Tower
Jalum Tome
Liquimetal Coating
Millstone
Mishra's Bauble
Ornithopter
Pristine Talisman
Self-Assembler
Sigil of Valor
Soul-Guide Lantern
Springleaf Drum
Swiftfoot Boots

Sheet transformers

At rate 1/16 (6.25%)
Arcee, Sharpshooter
Arcee, Acrobatic Coupe
Blaster, Combat DJ
Blaster, Morale Booster
Blitzwing, Cruel Tormentor
Blitzwing, Adaptive Assailant
Cyclonus, the Saboteur
Cyclonus, Cybertronian Fighter
Flamewar, Brash Veteran
Flamewar, Streetwise Operative
Goldbug, Humanity's Ally
Goldbug, Scrappy Scout
Jetfire, Ingenious Scientist
Jetfire, Air Guardian
Megatron, Tyrant
Megatron, Destructive Force
Optimus Prime, Hero
Optimus Prime, Autobot Leader
Prowl, Stoic Strategist
Prowl, Pursuit Vehicle
Ratchet, Field Medic
Ratchet, Rescue Racer
Slicer, Hired Muscle
Slicer, High-Speed Antagonist
Soundwave, Sonic Spy
Soundwave, Superior Captain
Starscream, Power Hungry
Starscream, Seeker Leader
At rate 1/112 (0.89%)
Blaster, Combat DJ
Blaster, Morale Booster
Blitzwing, Cruel Tormentor
Blitzwing, Adaptive Assailant
Cyclonus, the Saboteur
Cyclonus, Cybertronian Fighter
Flamewar, Brash Veteran
Flamewar, Streetwise Operative
Goldbug, Humanity's Ally
Goldbug, Scrappy Scout
Jetfire, Ingenious Scientist
Jetfire, Air Guardian
Megatron, Tyrant
Megatron, Destructive Force
Optimus Prime, Hero
Optimus Prime, Autobot Leader
Prowl, Stoic Strategist
Prowl, Pursuit Vehicle
Ratchet, Field Medic
Ratchet, Rescue Racer
Slicer, Hired Muscle
Slicer, High-Speed Antagonist
Soundwave, Sonic Spy
Soundwave, Superior Captain
Starscream, Power Hungry
Starscream, Seeker Leader
Ultra Magnus, Tactician
Ultra Magnus, Armored Carrier

Sheet foil_alt_art

At rate 1/136 (0.74%)
Artificer's Dragon
Ashnod, Flesh Mechanist
Autonomous Assembler
Battlefield Forge
Blast Zone
Blast-Furnace Hellkite
Brotherhood's End
Brushland
Deathbloom Ritualist
Diabolic Intent
Disciple of Caelus Nin
Drafna, Founder of Lat-Nam
Fade from History
Farid, Enterprising Salvager
Fateful Handoff
Fauna Shaman
Feldon, Ronom Excavator
Fortified Beachhead
Geology Enthusiast
Gix's Command
Gixian Puppeteer
Glint Raker
Gwenna, Eyes of Gaea
Hajar, Loyal Bodyguard
Hall of Tagsin
Harbin, Vanguard Aviator
Hexavus
Hostile Negotiations
Hurkyl's Final Meditation
Kayla's Command
Kayla's Music Box
Kayla's Reconstruction
Legions to Ashes
Liberator, Urza's Battlethopter
Llanowar Wastes
Loran of the Third Path
Machine God's Effigy
March of Progress
Mechanized Warfare
Misery's Shadow
Mishra's Command
Mishra's Foundry
Mishra, Tamer of Mak Fawa
Over the Top
Painful Quandary
Perennial Behemoth
Queen Kayla bin-Kroog
Razorlash Transmogrant
Rescue Retriever
Sanwell, Avenger Ace
Sardian Avenger
Scavenged Brawler
Scholar of New Horizons
Siege Veteran
Simian Simulacrum
Skystrike Officer
Smelting Vat
Soul Partition
Staff of Titania
Steel Seraph
Tawnos, the Toymaker
Teething Wurmlet
Terisian Mindbreaker
Terisiare's Devastation
Terror Ballista
The Archimandrite
The Stasis Coffin
The Stone Brain
The Temporal Anchor
Thopter Shop
Thran Spider
Titania's Command
Tocasia's Welcome
Tocasia, Dig Site Mentor
Transmogrant's Crown
Tyrant of Kher Ridges
Underground River
Urza's Command
Urza's Workshop
Urza, Prince of Kroog
Visions of Phyrexia
Wire Surgeons
Wondrous Crucible
Woodcaller Automaton
Wreck Hunter
At rate 5/816 (0.61%)
Adaptive Automaton
Ashnod's Altar
Astral Cornucopia
Blackblade Reforged
Chromatic Lantern
Cloud Key
Defense Grid
Door to Nothingness
Gilded Lotus
Goblin Charbelcher
Howling Mine
Inspiring Statuary
Journeyer's Kite
Keening Stone
Key to the City
Lodestone Golem
Mazemind Tome
Phyrexian Revoker
Precursor Golem
Psychosis Crawler
Quicksilver Amulet
Quietus Spike
Runechanter's Pike
Scrap Trawler
Sculpting Steel
Semblance Anvil
Sword of the Meek
Thorn of Amethyst
Unwinding Clock
Well of Lost Dreams
At rate 1/272 (0.37%)
Arcane Proxy
Ashnod the Uncaring
Awaken the Woods
Bladecoil Serpent
Cityscape Leveler
Clay Champion
Draconic Destiny
Gix, Yawgmoth Praetor
Hurkyl, Master Wizard
In the Trenches
Mishra, Eminent One
Myrel, Shield of Argive
One with the Multiverse
Phyrexian Fleshgorger
Platoon Dispenser
Portal to Phyrexia
Rootpath Purifier
Rootwire Amalgam
Saheeli, Filigree Master
Sarinth Greatwurm
Skitterbeam Battalion
Surge Engine
Tawnos, Solemn Survivor
Teferi, Temporal Pilgrim
Titania, Nature's Force
Urza's Sylex
Urza, Chief Artificer
At rate 5/1632 (0.31%)
Aetherflux Reservoir
Altar of Dementia
Caged Sun
Helm of the Host
Mesmeric Orb
Mind's Eye
Mox Amber
Mystic Forge
Perilous Vault
Phyrexian Processor
Platinum Angel
Ramos, Dragon Engine
Staff of Domination
Sundering Titan
Wurmcoil Engine
At rate 1/816 (0.12%)
Adaptive Automaton
Ashnod's Altar
Astral Cornucopia
Blackblade Reforged
Chromatic Lantern
Cloud Key
Defense Grid
Door to Nothingness
Gilded Lotus
Goblin Charbelcher
Howling Mine
Inspiring Statuary
Journeyer's Kite
Keening Stone
Key to the City
Lodestone Golem
Mazemind Tome
Phyrexian Revoker
Precursor Golem
Psychosis Crawler
Quicksilver Amulet
Quietus Spike
Runechanter's Pike
Scrap Trawler
Sculpting Steel
Semblance Anvil
Sword of the Meek
Thorn of Amethyst
Unwinding Clock
Well of Lost Dreams
At rate 1/1632 (0.06%)
Aetherflux Reservoir
Altar of Dementia
Caged Sun
Helm of the Host
Mesmeric Orb
Mind's Eye
Mox Amber
Mystic Forge
Perilous Vault
Phyrexian Processor
Platinum Angel
Ramos, Dragon Engine
Staff of Domination
Sundering Titan
Wurmcoil Engine

Sheet double_rainbow_serialized

At rate 4/147 (2.72%)
Bone Saw
Burnished Hart
Chromatic Star
Elsewhere Flask
Foundry Inspector
Ichor Wellspring
Ivory Tower
Jalum Tome
Liquimetal Coating
Millstone
Mishra's Bauble
Ornithopter
Pristine Talisman
Self-Assembler
Sigil of Valor
Soul-Guide Lantern
Springleaf Drum
Swiftfoot Boots
At rate 2/147 (1.36%)
Adaptive Automaton
Ashnod's Altar
Astral Cornucopia
Blackblade Reforged
Chromatic Lantern
Cloud Key
Defense Grid
Door to Nothingness
Gilded Lotus
Goblin Charbelcher
Howling Mine
Inspiring Statuary
Journeyer's Kite
Keening Stone
Key to the City
Lodestone Golem
Mazemind Tome
Phyrexian Revoker
Precursor Golem
Psychosis Crawler
Quicksilver Amulet
Quietus Spike
Runechanter's Pike
Scrap Trawler
Sculpting Steel
Semblance Anvil
Sword of the Meek
Thorn of Amethyst
Unwinding Clock
Well of Lost Dreams
At rate 1/147 (0.68%)
Aetherflux Reservoir
Altar of Dementia
Caged Sun
Helm of the Host
Mesmeric Orb
Mind's Eye
Mox Amber
Mystic Forge
Perilous Vault
Phyrexian Processor
Platinum Angel
Ramos, Dragon Engine
Staff of Domination
Sundering Titan
Wurmcoil Engine

Sheet foil_transformers

At rate 1/16 (6.25%)
Arcee, Sharpshooter
Arcee, Acrobatic Coupe
Blaster, Combat DJ
Blaster, Morale Booster
Blitzwing, Cruel Tormentor
Blitzwing, Adaptive Assailant
Cyclonus, the Saboteur
Cyclonus, Cybertronian Fighter
Flamewar, Brash Veteran
Flamewar, Streetwise Operative
Goldbug, Humanity's Ally
Goldbug, Scrappy Scout
Jetfire, Ingenious Scientist
Jetfire, Air Guardian
Megatron, Tyrant
Megatron, Destructive Force
Optimus Prime, Hero
Optimus Prime, Autobot Leader
Prowl, Stoic Strategist
Prowl, Pursuit Vehicle
Ratchet, Field Medic
Ratchet, Rescue Racer
Slicer, Hired Muscle
Slicer, High-Speed Antagonist
Soundwave, Sonic Spy
Soundwave, Superior Captain
Starscream, Power Hungry
Starscream, Seeker Leader
At rate 1/112 (0.89%)
Blaster, Combat DJ
Blaster, Morale Booster
Blitzwing, Cruel Tormentor
Blitzwing, Adaptive Assailant
Cyclonus, the Saboteur
Cyclonus, Cybertronian Fighter
Flamewar, Brash Veteran
Flamewar, Streetwise Operative
Goldbug, Humanity's Ally
Goldbug, Scrappy Scout
Jetfire, Ingenious Scientist
Jetfire, Air Guardian
Megatron, Tyrant
Megatron, Destructive Force
Optimus Prime, Hero
Optimus Prime, Autobot Leader
Prowl, Stoic Strategist
Prowl, Pursuit Vehicle
Ratchet, Field Medic
Ratchet, Rescue Racer
Slicer, Hired Muscle
Slicer, High-Speed Antagonist
Soundwave, Sonic Spy
Soundwave, Superior Captain
Starscream, Power Hungry
Starscream, Seeker Leader
Ultra Magnus, Tactician
Ultra Magnus, Armored Carrier

Sheet brr_schematic_uncommon

At rate 1/18 (5.56%)
Bone Saw
Burnished Hart
Chromatic Star
Elsewhere Flask
Foundry Inspector
Ichor Wellspring
Ivory Tower
Jalum Tome
Liquimetal Coating
Millstone
Mishra's Bauble
Ornithopter
Pristine Talisman
Self-Assembler
Sigil of Valor
Soul-Guide Lantern
Springleaf Drum
Swiftfoot Boots

Sheet brr_retro_artifact_rare_mythic

At rate 2/75 (2.67%)
Adaptive Automaton
Ashnod's Altar
Astral Cornucopia
Blackblade Reforged
Chromatic Lantern
Cloud Key
Defense Grid
Door to Nothingness
Gilded Lotus
Goblin Charbelcher
Howling Mine
Inspiring Statuary
Journeyer's Kite
Keening Stone
Key to the City
Lodestone Golem
Mazemind Tome
Phyrexian Revoker
Precursor Golem
Psychosis Crawler
Quicksilver Amulet
Quietus Spike
Runechanter's Pike
Scrap Trawler
Sculpting Steel
Semblance Anvil
Sword of the Meek
Thorn of Amethyst
Unwinding Clock
Well of Lost Dreams
At rate 1/75 (1.33%)
Aetherflux Reservoir
Altar of Dementia
Caged Sun
Helm of the Host
Mesmeric Orb
Mind's Eye
Mox Amber
Mystic Forge
Perilous Vault
Phyrexian Processor
Platinum Angel
Ramos, Dragon Engine
Staff of Domination
Sundering Titan
Wurmcoil Engine