[s4e2]: Mother Mayhem

The episode culminates in a high-stakes battle between the Titans and the titular villain:

: During the fight, Mayhem drains energy directly from Raven’s soul gem, causing it to disappear. This leaves Raven significantly weakened and turns her hair white. [S4E2] Mother Mayhem

: Nightwing and Raven inspect Luthor's penthouse, confirming that his death was caused by dark magic. The episode culminates in a high-stakes battle between

: Wielding a powerful magical staff, Mother Mayhem proves to be a formidable threat, easily matching the combined power of the Titans. [S4E2] Mother Mayhem

: Raven traces a magical disturbance to a home where a "monstrous serial killer" (revealed to be Luthor’s physician, Arthur Holmwood) is draining victims' blood to empower a sinister force.