Pay 2 Force Two of your Assassins and/or Bounty Hunters in the same arena each get up to 2 abilities from the other until end of turn. Play only when the turn starts or when the battle phase starts.
Keywords
Bounty
Bounty: [bonus]: A layered ability triggered during a unit discard that means, "When another unit is discarded by damage from this unit, you gain the following when your next build step starts." Bounty triggers even if the attacking unit leaves play. Bounty works in the build zone. You will gain the bounty even if the attacking unit is sent to the discard pile. The unit can't collect a bounty on itself.