When you score a Critical Hit, you can expend the Charm (no action required) to deal an extra 10 damage of one of the types dealt by the attack.
Manifest Charm of Shavarath, the Battleground
RewardEFAp. 502024
Raw data
{
"name": "Manifest Charm of Shavarath, the Battleground",
"page": 50,
"type": "Charm",
"__prop": "reward",
"source": "EFA",
"entries": [
"When you score a Critical Hit, you can expend the Charm (no action required) to deal an extra 10 damage of one of the types dealt by the attack."
]
}