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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.
Abilities, attacks, weakness & resistance
Other cards from The Brothers' War
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Autonomous Assembler (BRO-34 foil) is an Artifact Creature — Assembly-Worker from The Brothers' War. It has Prototype allowing it to be cast as a cheaper 2/2 white version and also grants Vigilance and an activated ability to put +1/+1 counters on another Assembly-Worker you control. As a mid-cost artifact creature it supports tribal Assembly-Worker synergies and counter-based growth strategies.
Catalog pricing data as of 5 May 2026, 00:44
