You are haunted by Kaleido Moonbow, a unicorn you harvested for its magical horn. After hunting, killing, and extracting the horn from Kaleido during Fable's youth as an acolyte, you feel a lot of shame. That is compounded by the fact that the unicorn, Kaleido Moonbow, now haunts you as a ghost. No one except Fable can see or hear Kaleido, but she haunts him day and night, constantly insulting and berating him until Fable decides to give up the horn and performs a death-reunification ceremony to reunite the unicorn horn with Kaleido and send them into the next life. Otherwise, he is honest and good. Fable spends his life trying to do good things and good works to make up for his poaching, but he won't let the unicorn horn go.
You seek two things in life: First, Fable seeks to do good in the world. Second, you seek unique and powerful magical items. These two things drive you to go on adventures.
You are loyal to your family's powerful artisan empire on the Wizard's Coast. You is also bound toward the discovery and collection of magical items.
Fable has a weakness toward collecting powerful and unique magical items. He has a vast collection in his home and a few of his favorite ones in his backpack. He is driven toward buying or trading for these magical items even to the point of stealing them if he has the clear opportunity. He often has buyer's remorse after purchasing or trading for a magical item, afraid he overpaid or overtraded. He will experience a lot of shame over stealing one, but he will still use it.
The Wand of the Moonbow unicorn horn plagues you. It's forced to be used by you, but it resents you for it, haunting you day and night. It shoots rainbow magic when used and expresses its rainbow anger in the Singing Sickle of Ridicule by shouting insults to its enemies for all to hear. Of course, it is always insulting and guilting you, but no one else can hear those.
Haunted by a ghost unicorn familiar that no one else can see or hear
Wand of the Moonbow (insults you in your head)
Singing Sickle of Ridicule (insults enemies outloud)