Sign of One

"Signers" believe that everyone is the center of their own reality and that reality can be reshaped by the power of imagination. Their headquarters is the Hall of Speakers, which houses Sigil's legislature. Some of them are solipsists, though most are not so extreme.

Structure

Plane of Influence: The Beastlands Headquarters: The Hall of Speakers Allies: The Sensates Enemies: The Harmonium and the Bleak Cabal. Restrictions: No Lawful Good or Lawful Neutral members. They have big egos that tend to rub people the wrong way. They have a penalty to charisma checks. Rising in the Ranks: To Join: Go to the Hall of Speakers and predict the future. If it comes true, you're in. Factotums belong to the inner circles of the faction. Factol Darius: Neutral good olive-skinned woman who promotes tolerance and diversity. Powers: As members become more powerful, they can gain these powers: Advantage on saves vs. illusionary magic. Imagining: Factotums have a special power called imagining where they can mimic certain creation spells. In 2e it's minor creation or shadow monsters. For 5e, maybe phantasmal force, phantom steed, and phantasmal killer? Basically, the caster needs to make a check. If they do, they can imagine an object or creature into reality for a time. Failing this check means they "burn out" and can't try using the power again until they gain a level. If the Signer rolls a one, the signer realizes that he or she is imaginary and becomes a shadow version of themselves. Each day they can make a check to try to imagine themselves back to reality.