Bounty Hunter allies have +100% Potency and gain Advantage for 2 turns when they inflict a debuff. When Cad Bane is in the Leader slot, and not the Ally slot, the following Contract is active:
Contract: Inflict 20 debuffs on enemies. (Only Bounty Hunter allies can contribute to the Contract.)
Reward: All enemies have -50% Tenacity for the rest of the battle. All Bounty Hunter allies have their Payouts activated.