Up to 5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
Continuously chaining more than 2 attacks gives 2-5% Power. Stacks 10 times.
Chaining Charged Attacks reduces their Charge Time by -12--6%. Stacks 5 times.
1-4 Burn Stack(s) on Critical Hit to a maximum of 3-12 Stack(s).