When each turn starts, if damage from one of your Armies, Fleets, Squads, or Squadrons caused one of your opponent's units to be discarded last turn, you may choose one of your Armies, Fleets, Squads, or Squadrons. If you do, the chosen unit gets +10 speed, Accuracy 1, Damage Control 1, and “Pay 4 Force This unit gets Double Strike until end of turn.” until end of turn.