Which Apex Legends event introduced the Mobile Respawn Beacon?

The Lost Treasures event introduced the Mobile Respawn Beacon in Apex Legends.

Lost Treasures ran from June 23 to July 7, 2020, during Apex Legends’ fifth season, Fortune’s Favor. Its special Armed and Dangerous Evolved mode removed ordinary Respawn Beacons from the map and gave players access to the new portable version instead. Players could deploy a beacon almost anywhere, then use it to bring back a squadmate whose banner had been recovered.

The item was designed to make repositioning and recovery more flexible. A Mobile Respawn Beacon arrives through a satellite-style drop, so using one creates both an opportunity and a risk: the team gains a way to revive a teammate but may reveal its location while waiting for the beacon to land and activate.

After the event, Mobile Respawn Beacons entered the regular loot pool in public and Ranked matches. That history can cause confusion because several other events also introduced important equipment. System Override introduced Evo Shields, while Chaos Theory helped expand the role of Heat Shields and the Survival Slot. Fight Night and The Old Ways did not introduce the Mobile Respawn Beacon.