Moon Goddess presented the Luna of every pack with a special power. The power that was born as soon as s/he met an Alpha mate. Yet, Luna's power varied for each person, some were good some were normal and some were very special.
Luna’s power contributed greatly to pack strength and survival. Therefore, every Luna tried to push their power beyond the limit. One could extend her power with a long extensive training, the other used a forbidden ritual that required the lives of innocence.
After her husband died at the hand of Thomas Silvermoon, Viviane Violet swore for vengeance. However, at that time, her power was not good enough to eliminate the Silvermoon Pack. Her power can be applied only to one person. Hence, she had trained many years to extend her power limit, but the outcome was unsatisfactory.