The 2022 Magic: The Gathering The Brothers' War Promos Autonomous Assembler (34p) is a foil artifact creature featuring unique prototype mechanics and Assembly-Worker subtype.
Autonomous Assembler
2022 • Magic: The Gathering • The Brothers' War Promos
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$0.28
Description
The Autonomous Assembler, designated as card 34p in the 2022 Magic: The Gathering The Brothers' War Promos set, offers a distinct mechanical identity for trading card game enthusiasts. Printed with a foil finish and illustrated by Slawomir Maniak, this artifact creature belongs to the Assembly-Worker subtype and features a prototype layout that allows for flexible casting strategies. As an artifact creature with a mana value of five, it presents a 4/5 body when cast normally, but its true versatility lies in its prototype ability, which permits casting with a lower mana cost of {1}{W} for a smaller 2/2 size. This prototype mechanic is central to the card's design, allowing players to adapt the creature's presence on the battlefield based on their immediate resource needs. The Autonomous Assembler possesses the vigilance keyword, ensuring it can block or attack without tapping, while also offering a triggered ability that lets players place a +1/+1 counter on a target Assembly-Worker they control for one mana and by tapping the Assembler itself. This synergy makes it a functional piece within Assembly-Worker tribal strategies, providing both defensive stability and growth potential for related tokens. Collectors of Magic: The Gathering cards often seek out promo cards from The Brothers' War expansion for their unique artwork and distinct card numbers compared to standard set releases. The foil treatment adds visual appeal, making the Autonomous Assembler a desirable addition to collections focused on artifact creatures, promotional variants, or specific set completions. Understanding the prototype rules is essential for both playing and appreciating the card's design, as it bridges the gap between standard mana costs and alternative casting options found in the game's history. Whether you are building a library of artifact creatures or completing the The Brothers' War Promos subset, this card represents a unique intersection of mechanical innovation and collectible value in the modern TCG landscape.
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Card Details
The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
Catalog Profile
The core identity of the card within the set.
Featured Subject
The subject, team, league, and sport context tied to this card.
Featured
Autonomous Assembler
Game
Magic: The Gathering
TCG Attributes
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Rare
Slawomir Maniak
Card Stock
English
Foil
{5}
Artifact Creature — Assembly-Worker
4 / 5
Card Text
Abilities, attacks, oracle text, and flavor text printed on the card.
Prototype {1}{W} — 2/2 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) Vigilance {1}, {T}: Put a +1/+1 counter on target Assembly-Worker you control.












