When does Gear return to the Base if it was just created at a Battlefield?

Gear that is created at a Battlefield returns to the Base during the next Cleanup phase. This is a key aspect of gameplay, as it adds a tactical layer to how players manage their resources and strategy within the game. The Cleanup phase typically occurs after all actions have been completed for the current turn, allowing players to tidy up the Battlefield and reset for the next round of play.

The timing of the Gear's return is significant because it creates opportunities for players to plan their moves carefully. Knowing that Gear will not be available until the start of the next Cleanup phase encourages players to consider how they will utilize it effectively before it's removed. Additionally, it can affect decisions related to attacking, defending, or positioning on the Battlefield based on the anticipated loss of that Gear in the subsequent cleanup.

In contrast, the other options suggest immediate or different timings for the return of Gear, which does not align with the game's established mechanics regarding how and when Gear operates between turns.