Level   Description
1       + 1 Colossal Endurance
2       + 1 Iron Skin
3       + 1 Colossal Endurance
4       + 1 Iron Skin
5       + 1 Colossal Endurance   + 1 Distracted Gaze
6       + 1 Iron Skin
7       + 1 Colossal Endurance
8       + 1 Iron Skin
9       + 1 Colossal Endurance
10      + 1 Iron Skin            + 1 Distracted Gaze
11      + 1 Colossal Endurance
12      + 1 Iron Skin
13      + 1 Colossal Endurance
14      + 1 Iron Skin
15      + 1 Colossal Endurance   + 1 Distracted Gaze

Iron Skin:
Colossal Endurance：防disarm和stun
Distracted Gaze：脫離戰鬥