遗物
先看它在什么时候真的有用
只有当一发子弹同时打出重击和暴击时才结算增伤，且每件火系遗物都会再放大一截。火系暴击+重击体系里这就是滚雪球核心；体系不齐时几乎触发不了。
带入规划器怎么决定要不要拿
Take it when your current route already produces the smite, crit, crit payoff 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。