Modded
Geas is singular. Geasa is plural. These specialized curses are most frequently used by mabrigash.1
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The Ashlanders call a Mabrigash’s curse a “geas”. Dratha has woven an immensely complex geas around herself which will be released in the event of her passing. The only contemporary magic users trained to defend against geasa are Wise Women. Whoever kills Dratha will need some sort of protection. This is a serious and dangerous undertaking, %PCName. Do you accept?
— Aryon (dialogue)1
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A geas is not simply a “curse”. It is a prohibition placed upon someone. If the geas is violated, the victim will suffer the consequences. But if they observe their geas, they will enjoy the blessings. Mabrigash will frequently place a geas on their male victims to control them — and reward good behavior. Your description of this geas brings back an old memory… I must commune with my ancestors if you wish to learn more. Come back in a day.
The geas of a Mabrigash is not to be trifled with. Even killing a Mabrigash is not always enough if it is set off by her death. Best to avoid them entirely.
…I have placed the protection on you. A geas cannot be removed, but it can be countered. It’s like reflecting a spell. When Dratha’s geas tries to settle on you, it will be thrown back at her. Of course if she is dead… well, it’s uncertain what will happen. But you should be safe.
— Sonummu Zabamat (dialogue)1