A Trooper or Ground Vehicle unit can make the Standby action to gain 1 Standby token. Place it on the battlefield near the unit’s unit leader. A unit cannot make an Attack action and a Standby action in the same Activation. A unit can only have 1 Standby token at a time.
During the Activation Phase, after an enemy unit within
and in LOS of any miniature in an allied Trooper or allied Ground Vehicle unit with a Standby token makes an attack, Move, or action, if it is not that allied unit’s Activation and that attack, Move, or action was not caused by an effect of that allied unit’s controlling player, that allied unit may spend a Standby token to make a free Move action or a free Attack action. The only unit that can be declared as a defender during a free Attack action made in this way is the enemy unit that made the attack, Move, or action that triggered the Standby.If a unit makes a Move, an attack, an action, or gains 1 or more Suppression tokens, it removes any Standby tokens it has.A Standby token is spent before any effects that trigger after an attack, Attack action, Move, or Move action is resolved. A unit cannot spend a Standby token until all of an attacking unit’s Attack Pools have been resolved.
Melissa’s Battle Droid unit makes the Standby action and gains a Standby token. Later in the round, the enemy Clone Trooper unit activates and makes an action. Because the Clone Trooper unit is within 2 of the Battle Droids and in LOS, after the action is complete the Battle Droids may spend their Standby token to make a free Move or Attack action after the Clone Trooper’s action is resolved.