[s1e15] Masquerade (2024)

Katherine has a witch named Lucy cast a binding spell, linking Katherine’s physical body to Elena’s. Every injury Stefan and Damon inflict on Katherine is mirrored on Elena, forcing them to stop their attack.

Alaric attempts to kill Damon but is killed himself. He remarkably comes back to life, revealing for the first time the power of his protective Gilbert Ring. [S1E15] Masquerade

If you specifically meant S1E15, this episode focuses on the mystery of Elena's birth mother and the fallout of the tomb opening. Katherine has a witch named Lucy cast a