Register: A player that “registers as” a specific character or alignment counts as that character or alignment for game rule purposes, and for other player’s abilities. For example, if a good player “registers as evil,” they are still good (and win when good wins), but they count as evil to characters that detect evil. Registering as a character does not impart that character’s ability.

тут

Тут про другое. Тут регистрирование как раз даёт сработать абилке Снейк Чармера. А затем работает абилка снейк чармера

Да, работает. И принимает всё как зарегистрировано