Instigator (noun) — محرّض ومثير: A person who starts or provokes an action. Below are 8 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
A person who leads others in wrongdoing or mischief.
A person who establishes an institution or company.
initiatororiginatorprovokercatalystagitatorprime mover
A person or group that attacks or starts a conflict first.
A person who causes problems.