遗物
先看它在什么时候真的有用
用击杀喂战技：每有敌人死亡，战技冷却立减 1 秒，清杂兵潮时战技几乎无缝连发。但单体 Boss 房没人头可收，收益骤降。
带入规划器怎么决定要不要拿
Take it when your current route already produces the battle skill, crowd, frequency 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。