So watching this unfold in our Organized play group, characters that have good healing get to use this to generate more draws.
Specifically when our CD Damiel gets it, he uses it to reset his hand and drops the card but has plenty of healing to ignore it. Essentially upon finding a boon he can draw a new hand -1. So this can refill his hand of blessings or allies or anything else to help him keep generating explorations.
Any character with strong healing can turn this into a boon.
I feel it should have something to make it a bigger penalty. It is suppose to be one of the worst curses.
Curse of the Sphinx (and the Sphinx triggers you encounter on banes) are not intended to be one of the worst things that happen to you. I think Curse of Blindness is probably the worst of the curses, tbh.
You run into more triggers from the examines, and your hand is chaotic; sometimes it wrecks your plans and sometimes it saves your bacon :)
Yeah my Zetha was not a fan of that curse.