| Name | Brain Stem Antenna |
|---|---|
| Image | 
|
| Artist | Quentin de Warren |
| Text | This creature gains, “After you play a Mars creature, ready this creature and for the remainder of the turn it belongs to house Mars.” |
| Keywords | |
| Assault | |
| Hazardous | |
| EnhanceAmber | 0 |
| EnhanceCapture | 0 |
| EnhanceDamage | 0 |
| EnhanceDraw | 0 |
| EnhanceDiscard | 0 |
| EnhancePowerCounter | |
| FlavorText | |
| Power | |
| Armor | |
| Æmber | 0 |
| Type | Upgrade |
| House | Mars |
| Traits | |
| Rarity | Rare |
| SearchText | This creature gains, “After you play a Mars creature, ready this creature and for the remainder of the turn it belongs to house Mars.” |
| SearchFlavorText | |
| Source |
| Set Name | Call of the Archons |
|---|---|
| Card Number | 209 |
| Meta | Debut |
| Set Name | Age of Ascension |
|---|---|
| Card Number | 192 |
| Meta |
| Set Name | Vault Masters 2023 |
|---|---|
| Card Number | 163 |
| Meta |
| Set Name | Æmber Skies |
|---|---|
| Card Number | 220 |
| Meta |
| Set Name | Crucible Clash |
|---|---|
| Card Number | 087 |
| Meta |
| Set Name | Vault Masters 2025 |
|---|---|
| Card Number | 127 |
| Meta |