Create a rule called Roles {I}:

Each Participant has up to one Role, which is a publicly tracked value which defaults to blank. A Participant with a non-blank role may be referred to as “A(n) X” or “The X” where X is that Role. Whenever a Participant’s Target is changed, their Role is set back to its default. Whenever a Participant gains a role, if that role is the same as the non-blank role of another Participant in their Team, that second Participant loses their Role.

Where a Role has a weekly action defined for it, that action cannot be performed by a Participant until that Participant has held that role continuously for three days.

As a subrule of Roles {I}, create a rule called The Crew {M}:

A Participant can, as a Heist Action, set the Role of any Participant in their team to a legal value. When a Mastermind performs that action, they may additionally set the Role of another Participant in their team to a legal value.

Brains is a Role. As a Heist Action, the Brains can substitute any word in the ruleset for one of its synonyms. That substitution cannot be from or to any term defined in the ruleset, and the sentence must retain the same meaning as a result of the change.

Muscle is a Role. As a Heist Action which is a weekly action, the Muscle can transpose two adjacent words in the rules text if that transposition would result in all affected sentences having a meaningful interpretation.

Driver is a Role. As a Heist Action which is a weekly action, the Driver may make a blog post declaring that they are assisting in a get-away. During the twenty-four hours following that post, each member of that Driver’s team may subtract 24 from the DICE48 roll (to a minimum of 0) for the first Heist Action that member performs in that period.

Treasurer is a Role. As a Heist Action, the Banker may append a copy of any word from any rule onto the end of the rules text of The Bank {M}. They may optionally give that word a preceding space.

Double Agent is a Role. As a Heist Action which is a Weekly action, the Double Agent may perform a Heist Action as if they were part of another Team. When they do so, they must clearly denote which Team they are performing the Heist Action as if they belonged to, and they skip the required DICE48 roll for that second Heist Action (with a roll of 0 being classed as their result for that roll if relevant).

Create a rule called The Bank {M} with the following text:

{{All text in this rule, other than this sentence and its punctuation, are flavour text, and are additionally considered to be valid English words.}}

If “If It Isn’t Nailed Down…” failed, remove any instances of “{" or "}” from the added rules, except where those are part of the strings {M} or {I}.