Signe

Signe is one of the nine Val'kyr to enter a pact with Sylvanas Windrunner.

During the Fourth War, Signe journeyed to Darkshore where she with her sister Brynja started the ritual to resurrect Delaryn Summermoon and Sira Moonwarden into Forsaken. During the ritual, the Army of the Black Moon led by Tyrande Whisperwind attacked. Signe and her sister empowered Nathanos, which seemingly allowed him to get the upper hand against the Night Warrior until Malfurion Stormrage joined the fray. In response, Brynja personally entered the battle to aid Nathanos, which gave Signe enough time to finish the ritual. Following their resurrections, Delaryn Summermoon and Sira Moonwarden declared for the Forsaken causing Tyrande to lash out and kill Brynja. Following the death of Brynja, Signe revealed that her sister was slain before she could fulfill her part of their pact with the Dark Lady and that there were so few of them left.

When the Horde controls Bashal'Aran during the Battle for Darkshore, Signe is stationed at the barracks and serves as the recruitment officer.

Quotes
My sister was slain before she could fulfill her part of our pact with the Dark Lady.
 * Gossip

There are so few of us left now.