How to use

setLeavesTheBattlefieldTrigger

method

in

mage.abilities.common.SacrificePermanentTriggeredAbility

public SacrificePermanentTriggeredAbility(Effect effect, FilterPermanent filter) {
  super(Zone.BATTLEFIELD, effect);
  setLeavesTheBattlefieldTrigger(true);
  this.filter = filter;
}