When a creature under the effect of your Challenge maneuver hits you with an attack, you can take a Reaction to gain Resistance to the attack's damage for that attack and make an attack against that creature using a weapon or Unarmed Strike as a part of the same Reaction.
Vengeful Gambit
Raw data
{
"name": "Vengeful Gambit",
"level": 10,
"__prop": "subclassFeature",
"header": 2,
"source": "ValdaSpire24",
"entries": [
"When a creature under the effect of your Challenge maneuver hits you with an attack, you can take a {@variantrule Reaction|XPHB} to gain {@variantrule Resistance|XPHB} to the attack's damage for that attack and make an attack against that creature using a weapon or {@variantrule Unarmed Strike|XPHB} as a part of the same {@variantrule Reaction|XPHB}."
],
"className": "Captain",
"classSource": "ValdaSpire24",
"subclassSource": "ValdaSpire24",
"subclassShortName": "Lion Banner"
}