So, here is Mistmane as High Priestess. As one of the pillars, Beauty (generosity) and known for her compassion and kind nature, she felt fitting as High Priestess is the card that invites one to look into their feminine side, compassion, intuition, empathy and inner wisdom.
 
Tarot card meaning:  
Upright: Intuition, sacred knowledge, divine feminine, the subconscious mind.
 
Reversed: Secrets, disconnected from intuition, withdrawal and silence