The Brothers' War Prerelease Promo Pack has no variants:
Explore this pack in Sealed.

Sheets

Sheet prerelease_promo

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