É tradição PbtA apenas dizer-lhe para fazer coisas sem bainha e hawing sobre isso. Também é tradição da PbtA que o jogo é uma conversa e não há problema em mexer nas regras.
A saída da lista é perfeita, contanto que você tome um segundo para garantir que o grupo esteja bem com sua nova opção.
Veja algumas orientações sobre isso de designers de jogos.
Por exemplo, neste tópico , um jogador do Apocalypse World pergunta:
Was I wrong (not wrong, but maybe not quite approaching things in the best spirit of the game) to pick my own name?
If you're wondering, my character is a Maestro D' and the named I picked was Dickson. He's the proprietor of a high class retro-Victorian brothel.
John Harper, agora o designer de Blades in the Dark, responde:
You and the GM talking about it? That's one of the reasons there are name lists.
The way authority is hashed out there, between you and [the GM], and the role of the text and all: kind of like practice, in a way. Those exceptions hashed out beforehand ("Can my tank actually be a helicopter instead?") are an easy way for the group to find its feet and start the process of judgment calls and shared vision needed for play.
Vincent Baker, designer do Apocalypse World, responde:
I think John [Harper]'s nailed it. I don't think anybody's playing this wrong, certainly not [the OP].
"Can my car be a helicopter?" "Can my hardhold be a caravan of trucks, buses and vans?" "Can my infirmary be, like, a meditative state I go into, to go with my healing touch?" "Can my name be Dickson even though it's not on the list?"
The [GM] gets to say yes or no. All's well.