Werewolf

Werewolves are a type of monstrous Other. Rarer and darker than media portrayals, they are thought to be descended from Practitioners in some fashion.<ref>The second answer is that monsters are practitioners. We know about some cases. See Mara in the files for Jacob’s Bell. It’s a common theory with Faerie, and obviously the likes of vampires and werewolves, which are much rarer and more monstrous than conventional media would have us believe. - excerpt from Gathered Pages: 10</ref>

The book Quasi describes some Heartless as wearing animal skins and becoming monsters,<ref>A man dons an animal skin and stalks a forest trail.  Another drinks an alchemical admixture, and becomes a beast of another sort. - Quasi, quoted in Bonus Material: Bedtime Reading.</ref> and/or transforming on a fixed timetable (not necessarily that of the moon, nor into wolves),<ref>Four basic rituals are listed, in order, as per the Viscera (Otherness stemming from within),  Mien (Otherness starting at the outside), Calendar (Otherness at set intervals), and Unfettered (Otherness from detachment) categories. [...] The ‘Bloody Sundays’ Calendar practice is rather more open ended, setting a strict timeframe for changes (not necessarily the namesake Sundays), with a list of possible contracts and Others.  Some of the possibilities include transformation into a vengeance curse, shift into one of the seven Ideal Selves covered in Eclipsed Self Part II (the Brute, the Grace, etc), and tapping into a realm for a set time.  This should be considered a moderate-tier ritual and be conducted with close assistance and due precaution.  Once begun, the contracted timeframe must be ridden out. - Quasi, quoted in Bonus Material: Bedtime Reading. </ref> which may indicate that werewolves are simply one form of Heartless practice.

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