Call for Aid

You can use this command ability once per Battle
when a friendly Redeemer unit with 5 or
fewer models is destroyed. If you do so, pick one Stormcast Eternals hero on the battlefield. A new replacement unit identical to the unit that was destroyed is added to your army. Set up that unit wholly within 12" of that Stormcast Eternals hero
and more than 9" away from all enemy models