Olivette

Olivette is a renowned powerful witch. She was Rowena's rival and leader of the Grand Coven.

Background
No much known about her. In past, she was met Rowena and eventually become her rival. At some point, she took leadership in the Grand Coven. She also may be responsible for sending Katja to stop Rowena make troubles.

Power and Abilities
Although her power and abilities is unknown, being capable to take leadership of the Grand Coven, she maybe the most powerful witch in that community.

Weaknesses

 * Illusion Spell - as stated by Rowena, at least, she could be stunned by a very powerful Illusion Spell casted via the power of Rune of Amaranth.
 * A horde of stronger demons - Rowena planned to besiege her with a horde of stronger demons from Crowley's minions to overwhelm her, but later postponed by Crowley.
 * Higher Demons - Although not yet tested, Rowena claimed Crowley capable to defeat her.

Appearance

 * Season 10
 * The Executioner's Song
 * Paint it Black