How long is Attacking creature "attacking creature" ? Until end of combat step ?
Once the second main phase starts, creatures are no longer "attacking creatures"
508.1j [An attacking creature] remains an attacking creature until it’s removed from combat or the combat phase ends, whichever comes first. See rule 506.4.
When someone has an imaginary friend, we call it mental sickness. When a bunch of people have the same imaginary friend, we call it a religion.