Infernal Writ

Costs 5 soul shards and a scene of negotiation; you draft a contract binding a group, a bloodline, an organization, or a place. A duly empowered representative — a chief, an heir, a founder, a priest of the local god — accepts on the whole's behalf, freely, as with Offer Terms.

The Writ outlives the signatories. Heirs inherit the Debt; new members are bound on joining; the place itself enforces terms on those within it. Breach by any bound party triggers enforcement against that party, and you collect the forfeit. A Writ occupies one Ledger slot no matter how many souls it binds.