fgo-game-data/master/mstBattleMessageGroup.json

[{
    "groupId": 94069601,
    "messageId": 94069601,
    "probability": 100
}, {
    "groupId": 94069602,
    "messageId": 94069602,
    "probability": 100
}, {
    "groupId": 94069603,
    "messageId": 94069603,
    "probability": 50
}, {
    "groupId": 94069603,
    "messageId": 94069604,
    "probability": 50
}]