Hanuman assumed Panchamukhi or 5-confronted variety to destroy Ahiravana, a powerful rakshasa black-magician and practitioner of the darkish arts over the Ramayana war. Ahiravana, brother of Ravana, had taken Lord Rama and Lakshmana to netherworld as captive, and the only real technique to kill him was to extinguish five lamps https://www.youtube.com/@Mahavidyabaglamukhi