Duessa (Creature)

Seduction: Duessa has an ability to be able to seduce characters to get her way
Trickery: You never know Duessa's intentions but her actions benefit her
Ability: Seducing using trickery
I chose black for Duessa because she is a Witch that hides her true self and bases her actions on situations that will benefit her as seen in the quote provided where she seduced the beast to drink poison
Quote: In Canto 8, Stanza 16,"Then tooke the angrie witch her golden cup, Which still she bore, replete with magic