You can't be frightened while within 10 feet of an ally. If you're already frightened and move within 10 feet of an ally, the frightened condition ends on you.
You have disadvantage on Wisdom and Charisma saving throws while you aren't within 10 feet of an ally.
{
"name": "Fragment of Attachment",
"page": 214,
"type": "Fragment of Suffering",
"__prop": "reward",
"source": "CRCotN",
"entries": [
{
"name": "Benefit",
"type": "entries",
"entries": [
"You can't be {@condition frightened} while within 10 feet of an ally. If you're already {@condition frightened} and move within 10 feet of an ally, the {@condition frightened} condition ends on you."
]
},
{
"name": "Drawback",
"type": "entries",
"entries": [
"You have disadvantage on Wisdom and Charisma saving throws while you aren't within 10 feet of an ally."
]
}
]
}