The second piece is revealed to be a medallion held by a human.
The main component is Azrael's Blade, which Lucifer recovered earlier in the season.
Lucifer’s mother, Charlotte, is desperate to get her family back to Heaven. She attempts to push Lucifer and Chloe together, believing that Chloe is the key to making Lucifer want to leave Earth (or using her as leverage). Lucifer S02E1143:15 Min
The final piece is Amenadiel's necklace, which he has worn for millennia.
In Season 2, Episode 11, titled " Stewardess Interruptus ," the story centers on Lucifer and Chloe investigating two of his former lovers who are murdered, while Charlotte continues her manipulation of their relationship. Plot Summary: S02E11 The second piece is revealed to be a
Only Lucifer, as the "Lightbringer," can ignite the sword using his inner emotions (specifically his pain and anger). Lucifer Season 2 - Martin Stellinga
The episode concludes with a major bombshell: Charlotte meets with Maze and reveals that Chloe is a "miracle" intentionally placed in Lucifer's path by God, casting doubt on whether Lucifer and Chloe's connection is genuine or just another piece of his father's plan. Season 2 Context (The Flaming Sword) She attempts to push Lucifer and Chloe together,
The investigation eventually reveals that the murders are connected to a smuggling ring involving a mysterious package—which turns out to be a "flaming" substance that Lucifer initially mistakes for something more divine.