Typically, a Wheel-turner lays one or more Geasa after examining the weave of Destiny around the subject; Astrology and Omens are typical foci. The mage then asks Fate to give the spell's subject its attention. Geasa are often laid at birth, but it isn't unprecedented to acquire them or even seek them out in exchange for a special blessing, or Buada.  The rite of laying Geasa also includes the granting of Buada. The Wheel-tumer doesn't have to magically create the Buada ; Destiny reacts to the fundamental change brought about by accepting the taboo and the new blessing complements it.

System: Every two successes allows the mage to place one level of the Geasa Flaw (see Mage: The Ascension , p. 298-299. Use an inverse value to the point cost listed in the book. Unlike the standard Raw you may use it to get a Merit or Trait "for nothing.") upon a willing subject. Spending five additional successes makes the taboo permanent. Interestingly, the mage has no control over what sort of Geasa manifest, although she knows what they are upon releasing the spell.

For every point of Geasa, the character gains an additional Freebie Trait. This is the Buada. The caster chooses the general nature of the Buada but cannot determine specifics. For example, he can cast the rite to foster Buada that make the subject a better warrior, but he can't specifically grant improved swordsmanship. The player and Storyteller should discuss what the Buada are. These benefit the character for the duration of the Effect.

Multiple Geasa (and attendant Buada) can be laid on a subject, but these have a tendency to go awry, resulting in contradictory Geasa that can't be properly obeyed. Since the casting mage doesn't know what the Geasa will be until the rote is completed, the only thing she can do to prevent the subject from being entangled by them is to refuse to grant them.

Breaking a single Geasa dooms the subject with Flaws or negative Freebie Traits (spend those to reduce character Traits) equal to twice the value of all of the Geasa that she's accumulated. Instant Gilgul and a Dark Fate are two examples of what can befall a Geasa-breaker.

MET: Master Entropy. After reading omens or the stars, you may impose a magical ban of the Narrator's choice in exchange for granting three Free Traits to the subject. These enhance her according to the general aim of the spell and the Narrator's ruling. This lasts for the duration of the Effect. Examples include increasing fighting ability, luck or mystical wisdom.

If the subject breaks the ban, they lose six Traits of the Narrator's choice for the duration of the Effect. Casting the ritual takes 30 minutes.  The effects last for one day.  Grades of Success:  Each grade of success grants another three Traits in exchange for another magical ban (and risks losing an additional three Traits for breaking it) or increases the duration of the spell by one grade.