As stated in Discord, Leon is accepted:


[quote][b][color=C67C12]WEAKNESSES  ⫻[/color][/b] Being an Apparition created by the belief of Werewolves, Lady Lelou's abstraction makes Leon susceptible to all the standard werewolf weaknesses. The primary weakness of Leon is [i]silver[/i], as the mere touch of the substance (whether or not it's a silver blade or silver fork) will cause [i]severe[/i] burns that will heal very slowly - not even healers will be able to help him. If he's exposed to Wolfsbane, it will also cause the same effect - but it's highly toxic if ingested. Fire-based attacks are also extra-effective against him, and Leon instinctively fears fire - even a candle will cause him to be unnerved. However, whoever is Leon's "Handler" will have full control of him.[/quote]