Level   Description
1       + 1 Intelligence
2       + 1 Intelligence   + 5 Mana
3       + 1 Intelligence
4       + 1 Intelligence
5       + 1 Intelligence   + 7 Mana
6       + 1 Intelligence
7       + 1 Intelligence
8       + 1 Intelligence   + 9 Mana
9       + 1 Intelligence
10      + 1 Intelligence
11      + 1 Intelligence   + 11 Mana
12      + 1 Intelligence
13      + 1 Intelligence
14      + 1 Intelligence   + 13 Mana
15      + 2 Intelligence   + 1 Mana recovery