The Dominus Infernus Relic is a Limited Decor item in My Restaurant. It features a 12-hour cooldown after each use. Players can earn gem rewards ranging from 10,000 to 200,000. Additionally, the relic offers bonus rewards, including: Double Profits for 40 minutes or 1 hour, & Advertising Campaign lasting 25 minutes.
However, when the relic is Traded, it cannot be used for 24 hours.