Onslaught

 is a Basic Ability used by Captain Phasma.

Description
First Tier: "Deal Physical Damage to target enemy and inflict Offense Down for 2 turns on a Critical Hit. If this attack is not a Critical Hit, Phasma has a 25% chance to gain Advantage for 2 turns instead."

Final Tier: "Deal Physical Damage to target enemy and inflict Offense Down for 2 turns on a Critical Hit. If this attack is not a Critical Hit, Phasma has a 50% chance to gain Advantage for 2 turns instead."