Mark of the Star
The symbol of the star card from the Deck of Many Things is permanently emblazoned upon your body.
Legendary Boon 0 gp
Power Daily (Free Action)
Choose one ability score. Until the end of the encounter, you gain a +1 bonus to attack rolls made using that ability score, and a +1 bonus to checks with skills that use that ability score.
Published in Madness at Gardmore Abbey, page(s) 1-32.