Champion's Amulet

The Champion's Amulet is a mystical amulet used by Spike in the final confrontation with the First Evil. It is later revealed to be part of a revenge plot by Lindsey McDonald.

History
The amulet is first shown in "Home", when employees of Wolfram & Hart give Angel the amulet. Shortly after Buffy kills Caleb with Angel's help, Angel gives it to her, informing her that the amulet can only be worn by someone who has a soul and is more than human.

After Angel's departure, Buffy gives the amulet to Spike, who, during the final battle with the First, manages to unlock its power. As the remaining Scoobies escape Sunnydale, the amulet's power destroys all of the attacking Turok-Han and collapses the Hellmouth, but at a rather horrific cost: the entire city of Sunnydale collapses into a crater, and Spike is also incinerated. However, Spike's essence is contained within the amulet upon his apparent death.

In the unseen two-week period between "Chosen" and "Conviction", Lindsey travels to the ruins of Sunnydale, digs the amulet out of the Hellmouth, and then mails it to Angel, where it, upon arrival, brings Spike back to life, albeit as a ghost-like being.

Later, the amulet is used as part of a plan conducted by Angel and Spike to defeat Wolfram & Hart client and powerful necromancer Magnus Hainsley.