Continuously chaining more than 2 attacks gives 2-5% Power. Stacks 10 times.
Up to 5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
14-20% Strength for 5s when every pellet in a shot hits the same enemy.
Up to 14-20% Damage on Hit (Staggered Enemy), scaling with Stagger.