When you roll the Duality Dice and both dice roll the same number, that is a critical success. A critical success counts as a roll with Hope, even if you would’ve otherwise failed because the total is lower than the roll’s Difficulty.

When you critically succeed on a roll, along with gaining a Hope, you also clear a Stress from your character sheet.

Additionally, when you critically succeed on an attack roll, you deal extra damage as described in the “Damage Rolls” section.