Except you would need to take an action. The only way to do that would be Eternal Blade. You could take ranks in spellcraft and identify the spell that the wizard is casting, when he is about to cast time stop or any other instant death spell activate island in time then move up to him and use white raven hammer on him to stun him for a round, no save, so he loses that spell. Then try to kill him quickly or stun lock him using maneuvers.