Command Code (指令紋章(コマンドコード), Shirei Monshou?), also known as Command Crest is a new type of Card-Item that is meant to be engraved into any Servant's Command Cards.
When burned to the Da Vinci's Workshop each Command Code will earn you 1 Mana Prism and 100 QP for 1★, 200 QP for 2★, and 500 QP for 3★.
Command Codes were announced on F/GO 3rd Anniversary as part of their 10 Great Campaigns, while its implementation was on July 31,2018 18:00 JST.
How to Engrave?
 | Unlock the Command Card in using a corresponding opener (Buster Code Opener for Buster Cards etc.). |
 | Once unlocked, select the Command Code you want to engrave. |
 | Gain the effects of the Command Code when you use the Command Card. |
- To remove the engraved card, the Code Remover must be used. The removed Code can be reused for another card. (The normal price of said Code Removers are 1 Rare Prism each with only three of them available in the Rare Prism shop per month.)
| Unlock Cost Table (per Servant) | ||
|---|---|---|
| Rarity |  CostFor 1 Command Card | Cost For All Command Cards |
| 5★ | 1,000,000 | 5,000,000 |
| 4★ | 500,000 | 2,500,000 |
| 3★ | 300,000 | 1,500,000 |
| 2★ | 200,000 | 1,000,000 |
| 1★ | 100,000 | 500,000 |
Where to Obtain
The method to obtain this new card-item is similar to Status Up Cards, either through Friend Point Summon or Da Vinci's Workshop, or even through Time-Limited Events or Campaigns.
Effects
Card Back
| Bronze | Silver | Gold |
|---|---|---|
| Missing | Missing |
