When you use the Poison option of your Cunning Strike, the target also takes 2d6 Poison damage whenever it fails the saving throw. This damage ignores Resistance to Poison damage.
Envenom Weapons
Raw data
{
"name": "Envenom Weapons",
"page": 134,
"level": 13,
"__prop": "subclassFeature",
"header": 2,
"source": "XPHB",
"entries": [
"When you use the Poison option of your Cunning Strike, the target also takes {@damage 2d6} Poison damage whenever it fails the saving throw. This damage ignores {@variantrule Resistance|XPHB} to Poison damage."
],
"className": "Rogue",
"classSource": "XPHB",
"subclassSource": "XPHB",
"subclassShortName": "Assassin"
}