Arcana : Hanged Man
I borrowed some ideas from p5′s Loki and she’d probably have hooves as well, though her colors are likely muted save for golden hair. Her design is based off of various types of deer and wild cats. She’s only ever described as sitting sadly next to her husband as she collects the venom dripping above him, but she’s not forced to stay there. At any time Sigyn could walk away and leave Loki to his torment , alone.
So although she appears demure on the outside much like a deer I personally feel there’s a ferocity under the surface. She stays with him, whispering her words of love so he doesn’t lose spirit. Their sons were unjustly slain in her eyes, for crimes they did not commit. She sacrifices her own gratification in going after the other gods alone and waits until the foretold day her husband will break loose and bring ruin.
After all, her name means ‘victory’. She is a mother, the goddess of devotion, waiting patiently to exact vengeance for the fate of her sons.