When capped out this skill provides 2 benefits. First, it will increase the speed at which you gain combo up to 154%! That means you will gain “fuel” for your ruiners and Battle Cries extremely quickly. The more ruiners and battle cries, the more damage that you do. Secondly, it will increase your maximum combo level by 1. That means that with Quick to Anger, you will have 4 combos instead of three. A Berserker who properly allocates his skills can have 5. The higher the level, the more devastating the ruiner.