Unless they're negated, abilities always remain active until the end of the phase and in the case of cards that are cbn or inherently cbn because of their such and such cbn/p/I ability, those cards remain active until the end of the phase. If I attacked you with a somehow banded Isaiah and Angel of His Presence and you play CM on Isaiah and block with KoT then you would still keep the card from AoHP's draw. Next turn, or even next phase if you played Grapes and attack with AoHP his ability loses CBN status and could be negated.