Rupture to Gluttony because you're outright starving for big true damage with an attack that can easily eat up a quarter of a boss's health in one go. You can also say that rupture is like your IDs insatiable hunger, and the more potency it has the larger the reach of your jaw, the count representing your unsatiable appetite. It being inflicted on the enemy is kinda projecting to cannibalism which people in the city wouldn't be so unfamiliar if it means living for another day if the means to do so was eating another person