Dean's Reign of Winter
Mantle of the Black Rider
The PCs who encountered The Black Rider in the Border Wood have the following condition…
Each of the PCs gains a permanent increase of 2 points to one ability score of his or her choice. Additionally, the PCs are marked as favored servants of Baba Yaga, allowing them to bypass certain glyphs, wards, and other abjurations placed by the Witch Queen or her allies to protect locations or objects attuned to her.
In exchange for these boons, however, the PCs are compelled to go in search of Baba Yaga and ensure her return to Irrisen. This manifests as a geas-like effect on the PCs. If a character with the mantle of the Black Rider ceases to carry out this task for 24 hours, she takes a –2 penalty to each of her ability scores. Each day, another –2 penalty accumulates, up to a total of –8. No ability score can be reduced below 1 by this effect. The ability score penalties are removed 24 hours after the subject resumes carrying out its task. Only a limited wish, miracle, or wish can end this effect, though this also removes the ability score increase and favored servant status.
NOTE: A PC may pass this condition on to one other willing PC!