802.3
As the attacking player declares each attacking creature, they choose a defending player, a planeswalker controlled by a defending player, or a battle protected by a defending player for it to attack. See rule 508, “Declare Attackers Step.”
As the attacking player declares each attacking creature, they choose a defending player, a planeswalker controlled by a defending player, or a battle protected by a defending player for it to attack. See rule 508, “Declare Attackers Step.”