Edison format ruling
Dice Re-Roll

Card effect (current official text)One time, during the rest of this turn, if either player(s) rolls a die (or dice), you can have the player(s) re-roll. (You can only gain this effect once per turn.)
Rulings
- You activate Dice Re-Roll before you activate the effect which will let you roll a die. Then you can use the effect of Dice Re-Roll once during the turn in which you activated it. When you resolve the effect, you negate the result of a die roll and roll again.
- You can use a Dice Re-Roll to re-roll a die roll for an Archfiend.
- You can use a Dice Re-Roll to re-roll a die roll during the Damage Step.
- If you negate Roulette Barrel's die roll, you negate both rolls and must roll twice again.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.