Destructive Archelord

Whenever Destructive Archelord enters the battlefield, attacks, or leaves the battlefield, choose one -
* Destructive Archelord deals 5 damage to target creature.
* Untap each creature that attacked this turn. After this phase, there is an additional combat phase followed by an additional main phase.
* Destructive Archelord deals 1 damage to each creature. Each opponent discards a card for each creature they controlled that died this way.