Starting at 15th level, when you roll initiative and have no superiority dice remaining, you regain 1 superiority die.
Relentless
Raw data
{
"name": "Relentless",
"page": 73,
"level": 15,
"__prop": "subclassFeature",
"header": 2,
"source": "PHB",
"entries": [
"Starting at 15th level, when you roll initiative and have no superiority dice remaining, you regain 1 superiority die."
],
"className": "Fighter",
"classSource": "PHB",
"subclassSource": "PHB",
"subclassShortName": "Battle Master"
}