米拉的生命 is a Global 世界BOSS mission in 异度神剑X. It is a mission to defeat 「幻羽」特雷西亚 in 夜光森林's 神鸟寝所, and can be received from the Squad 任务 menu at the Network 中央控制台 in the BLADE HOME. To accept the mission, the player must use a BLADE Medal.
This mission appears twice a week on a regular schedule, and remains available for 1, 2 or 3 days or until 「幻羽」特雷西亚 has been defeated. In North America, 「幻羽」特雷西亚 arrives every Monday and Friday at one of three random times.
Resurrection Points
When the mission becomes available, 「幻羽」特雷西亚 begins with a very large number of Resurrection Points, or RP. Every time a player reduces 特雷西亚 Plume's HP to zero, its RP is reduced by one and its HP is fully restored. The mission continues until time runs out or until the enemy's HP and RP are both reduced to zero.
At the end of the mission, the results are reported back to the game's server, which tracks the enemy's remaining RP and relays it to all the players in the world. 「幻羽」特雷西亚 begins with roughly two million RP, so defeating it requires the combined effort of thousands of players around the world, each player stealing a small portion of its RP. 「幻羽」特雷西亚 will flee if it is not defeated within three days.
Appraisal and Guaranteed Rewards
After each attempt at this mission, the amount by which the player has reduced 特雷西亚 Plume's RP is added to the player's Current Appraisal score. This cumulative total will be doubled if 「幻羽」特雷西亚 is defeated. The final adjusted value determines the number of Guaranteed Rewards that the player will receive:
| Appraisal | Guaranteed Rewards |
|---|---|
| 1 | 1 特雷西亚再生粒子 |
| 10 | 5 特雷西亚 Stem Cells |
| 20 | 10 特雷西亚 Stem Cells |
| 50 | 30 特雷西亚 Stem Cells |
| 80 | 50 特雷西亚 Stem Cells |
These rewards are received after the boss flees or is defeated. The rewards are cumulative. For example, at an appraisal of 20 the number of 特雷西亚 Stem Cells received will be 1+5+10 = 16.
Appendage Fragments
In addition to some very rare materials, the player will receive Appendage Fragments from the appendages broken during the mission. These can be sold for Credits via the Inventory menu; sold for Reward Tickets via the Global 世界BOSS Battle Spoils menu at the Network 中央控制台; or kept until the 世界BOSS flees or is defeated, at which time they will be converted to valuable materials or Reward Tickets.
If the 世界BOSS was defeated, all the Appendage Fragments of a randomly chosen type—for example, 世界BOSS的头盖碎片—will be converted to extremely rare materials. If the 世界BOSS flees, no fragments are converted. In both cases all remaining Appendage Fragments are exchanged for Reward Tickets at a rate of one ticket per fragment. This is much lower than number of tickets that can be received for them while the mission remains available, so it can be advantageous to sell all fragments if it appears that the 世界BOSS will not be defeated in time.
