数据来源：官方开发直播、补丁日志及社区 Wiki，
已针对 Preludes 15 人工核实。
工具 · Common
Most reliable source for Thunderstone: Operation: Hark, the Collector
Most reliable source for Thunderstone: Operation: Hark, the Collector
A quest item used to destroy Ode'n Bisulcam units under specific circumstances.
Most reliable source for Thunderstone: Operation: Hark, the Collector
同类别材料横向对比，便于判断稀有度与主要掉落来源。
| 物品 | 稀有度 | 主要来源 | 刷取路线 |
|---|---|---|---|
| Thunderstone当前 | Common | Operation: Hark, the Collector | 有 |
| 地窟钥匙 | Rare | Quest: Pay Respects Sparrow's Tale — Gr… | 有 |
| Arrows | Common | Vendor: Avakot merchant | 有 |
| Cage Key | Common | Quest: Orengall pups rescue | 有 |
| Kearnhold Key | Common | Foe: Banneret Anara | 有 |
| Mirifuir Key | Common | Siege: Mirifuir Siege | 有 |
| Pensive's Quill | Common | Quest: College of Pensives | 有 |
| Sap Tap | Common | Quest: Wevetwood / Poppet storyline | 有 |
| Synsylk Grappler | Common | Foe: Sinecure soldiers | 有 |