“Provides a chance to use skills at 50% reduced energy cost while under the effect of Heart of Oak.”
NotesEdit
ProgressionEdit
Level  Skill Potency 

1 / 6 
9.0% Chance of 50% Energy Cost

2 / 6 
18.0% Chance of 50% Energy Cost

3 / 6 
27.0% Chance of 50% Energy Cost

4 / 6 
36.0% Chance of 50% Energy Cost

5 / 6 
45.0% Chance of 50% Energy Cost

6 / 6 
54.0% Chance of 50% Energy Cost

Levels only acquirable through items, shrines and Battle Standard  
7 / 6 
63.0% Chance of 50% Energy Cost

8 / 6 
72.0% Chance of 50% Energy Cost

9 / 6 
81.0% Chance of 50% Energy Cost

10 / 6 
90.0% Chance of 50% Energy Cost

Excerpt from Titan Quest: Anniversary Edition changelogEdit
 Activation chance increased to 9% per skill level.
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