技能
先看它在什么时候真的有用
让每发银弹都有一半概率引发当前武器的异常效果。[致命银弹]一次打出去就是好几发，一轮弹幕就能给一片怪挂满异常——前提是你手里武器的异常值得扩散。
带入规划器怎么决定要不要拿
Take it when your current route already produces the volley, crowd signals. The value comes from repeating that event, not from the item name or rarity alone.
If none of its triggers are happening yet, keep the slot open for a pick that strengthens the engine already on screen.
证据和关联对象
证据标记：Data-backed blueprint。数据按英文名称核对，中文名称只作为查找辅助。
