Level   Description
1       + 1 Backstab
2       + 1 Backstab   + 1 Open Wounds
3       + 1 Stealth
4       + 1 Damage
5       + 1 Backstab
6       + 1 Backstab   + 1 Open Wounds
7       + 1 Stealth
8       + 1 Damage
9       + 1 Backstab
10      + 1 Backstab   + 1 Open Wounds
11      + 1 Stealth
12      + 1 Damage
13      + 1 Backstab
14      + 1 Backstab   + 1 Open Wounds
15      + 1 Stealth    + 1 Open Wounds

Locations：Fishers Village, Rainbow Kingdom
           Royal Warriors Camp, Enigmatic Kingdom

Skills：Backstab 背刺，當敵人HP全滿時，第一下攻擊造成大傷害
        Open Wounds 割裂傷口，使敵人不斷流失體力
        Stealth 潛行，使敵人不易發現你(?)