question about tapping creatures in combat. my mate tapped to attack and made a creature unblock-able then in response i cast Pressure Point to tap his creature so it couldn't attack but he said his creature is already tapped because of combat that i couldn't do that. Surely he has to declare what creatures are attacking first then i have the chance to respond?
Your opponent only declares which creatures are attacking as they’re declared as attackers. Your don’t get the opportunity to tap those creatures once they’re actually declared as attackers. Your last chance to tap a creature before it can attack is in the beginning of combat step, but at that point there’s no foreknowledge of which creatures will attack.
If your opponent made their creature unable to be blocked once it was already attacking, then trying to tap it won’t remove it from combat or the like.