Pestilentia - Reveal: Choose an opponent. When that player makes a roll this round, the roll gets -1. If they are your rival, when that player attacks this round, the attack deals -1 damage, to a minimum of 0.
But as the Carthaginians, after they had... rifled and plundered the temples of Ceres and Proserpina, a plague seized upon their army, and the more to increase and sharpen the vengeance of the gods upon them."
Diodorus Siculus