---
name: "Autonomous Assembler"
mana_cost: "{5}"
cmc: 5
type_line: "Artifact Creature — Assembly-Worker"
colors: []
color_identity: ["W"]
keywords: ["Vigilance", "Prototype"]
set: "PRM"
set_name: "Magic Online Promos"
collector_number: "105626"
rarity: "rare"
artist: "Slawomir Maniak"
oracle_id: "3afdc98e-aeeb-43e9-bdcd-0c51da44d2f8"
canonical_url: "https://avascry.com/printing/autonomous-assembler-prm"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "legal"
---

# Autonomous Assembler
- **Mana Cost:** `{5}` (CMC: 5)
- **Type:** Artifact Creature — Assembly-Worker
- **Power/Toughness:** 4/5
- **Keywords:** Vigilance, Prototype

## Oracle Text
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.

## Top 4096-Dim Neural Synergies
1. [Assembly-Worker](/printing/assembly-worker-j22.md) — Artifact Creature — Assembly-Worker
2. [Arcbound Prototype](/printing/arcbound-prototype-mh2.md) — Artifact Creature — Assembly-Worker
3. [Self-Assembler](/printing/self-assembler-j22.md) — Artifact Creature — Assembly-Worker
4. [Foundry Assembler](/printing/foundry-assembler-aer.md) — Artifact Creature — Assembly-Worker
5. [Accomplished Automaton](/printing/accomplished-automaton-kld.md) — Artifact Creature — Construct
6. [Riveting Rigger](/printing/riveting-rigger-ust.md) — Artifact Creature — Cyborg Rigger

## Printing Details
- **Set:** Magic Online Promos (PRM) #105626
- **Rarity:** Rare
- **Artist:** Slawomir Maniak
- **Total Printings:** 16 across all historical editions

## Format Legalities
Commander: `legal` | Standard: `not_legal` | Modern: `legal` | Pioneer: `legal` | Legacy: `legal` | Vintage: `legal` | Pauper: `not_legal` | Penny: `legal`