■Card Description
| Name | Autonomous Assembler | 
| Color | Colorless | 
| Cost | (5) | 
| Cardtype | Creature Artifact | 
| Subtype | Assembly-Worker | 
| Rarity | Rare | 
| Oracle | 
                                Vigilance {1}, {Tap}: Put a +1/+1 counter on target Assembly-Worker you control. //PRT-Prototype_Mech// {1}{White} Prototype (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) 2/2  | 
                        
| Flavor Text | |
| Power/Toughness | 4 / 5 | 
| Expansion | The Brothers' War | 
| Illustrator | Slawomir Maniak | 
| Legality | Legacy,Modern,Vintage,Commander,Frontier,Pioneer,Historic,Brawl | 
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            Decks that include this card
■Pioneer
                                        Ensoul Aggro
- Player : kohki ogawa
 - Tournament : FNM ・3R(Standard Pioneer Modern Legacy)
 - Score : 3-0
 - Participants : 9
 - Date : 2023/02/10
 
                                        Mardu Aggro
- Player : Takahashi Yuya
 - Tournament : Kawasaki store January No.1 deciding match
 - Score : TOP8
 - Participants :
 - Date : 2023/01/15
 
                                        Rogue
- Player : Takahashi Yuya
 - Tournament : Pioneer Rumble
 - Score : Top8
 - Participants : 17
 - Date : 2023/01/03
 
■Modern
                                        Orzhov Aggro
- Player : Kasai Masafumi
 - Tournament : Weekday Modern 14:00 - 2023/1/25
 - Score : 3-0
 - Participants : 13
 - Date : 2023/01/25
 
                                        Death&Taxes
- Player : VFORVALUE
 - Tournament : Modern League - 2022/11/29
 - Score : 5-0
 - Participants :
 - Date : 2022/11/29
 
■Legacy
                                    Not applicable
                                
                            ■Vintage
                                    Not applicable
                                
                            ■Commander
                                    Not applicable
                                
                            ■Frontier
                                    Not applicable
                                
                            ■Historic
                                    Not applicable
                                
                            ■Brawl
                                    Not applicable