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.
Digital-only printing
No paper market price
Autonomous Assembler from Magic Online Promos is a digital-only printing (MTG Arena or Magic Online). This printing has no physical card, so TCGplayer and Cardmarket paper prices do not apply.
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