Lv 10 (2 rubies):
1. Attack + Magic +5% (real value seems to be +10%)
2. Defense +5%

Lv 15 (5):
1. critical chance +10%
2. block chance +10%

Lv 20 (10):
1. attack weakness +10%
2. counterattack chance +10%

Lv 25 (20):
Healing skills +10%

Lv 30 (35):
1. double attack rate +10%
2. HP +10%

Lv 35 (65):
1. Attack + Magic +10% (real value +20%)
2. Defense +10%

Lv 40 (110):
skill damage +10%

Lv 45 (160):
1. +damage for difference in level (arena only)
2. +reduction for difference in level (arena only)

Lv 50 (210):
1. opponent's critical chance -20% (good for siege)
2. opponent's block chance -20% (arena)

Lv 55 (270):
1. opponent's attack weakness -20% (arena)
2. opponent's counterattack chance -20% (siege)

Lv 60 (360):
opponents healing skills -20%

Lv 65 (500):
1. critical damage +20% (arena)
2. opponent's HP -15% (siege)

Lv 70 (650):
1. opponent's attack + magic -20% (arena)
2. opponent's defense -20% (siege)

Lv 75 (800):
damage +20%