Teen Wolf - Season 5eps20 Official

Once Mason is freed, Scott and Liam engage Sebastien. The final blow is dealt using the Pike (the cane-sword), which was forged from the same steel used to kill the Beast in the 1700s.

After Kira returns from the desert with her kitsune powers refined, she uses her sword to open a hole in the floor. Theo’s deceased sister—whom he had sacrificed years prior—drags him into the depths, effectively removing him as a threat.

Malia finally confronts her mother, Corinne. With Braeden’s help and a boost of power from Scott’s talons, Malia manages to siphon the remaining power from Corinne, leaving her human and ending her reign of terror. The Aftermath

This finale emphasized the season’s core theme: Whether it was the literal return of a 1700s killer, the revival of the pack’s broken bonds, or Mason being pulled back from the brink of erasure, "Apotheosis" solidified Scott’s role as a leader who saves people rather than just killing monsters.