Monoxa, Midway Manager

If a die is rerolled, the original roll essentially never happened: it doesn't cause any abilities to trigger, and no effect that cares about die rolls will consider it.

The die roll caused by the activated ability has no inherent effect: you just roll a six-sided die, but any ability that triggers whenever you roll a die will trigger. Abilities that trigger whenever you roll a specific result, such as Monoxa's first ability, may also trigger.

Each die is identified by the number of faces it has. A six-sided die is a die with six equally likely outcomes: 1, 2, 3, 4, 5, and 6. The roll must be fair. Although physical dice are recommended, digital substitutes are allowed except in cases where the physical die is required for the effect.