Again, you're putting in realism where the rules don't state that you're allowed to break them in this instance.<br/><br/>You attack someone successfully.<br/>The weapon casts the spell.<br/>The spell goes off, with the target as the person.<br/>Just like any normal spell would.<br/>Just like any normal spell, you need to follow the rules.<br/>If it does not require an attack and just provokes a save, they make a save.<br/>If it is a touch spell that requires an attack, you make the attack as normal.<br/><br/>That doesn't change because nowhere does it say that the regular rules are changed. It would need to explicitly say so if the regular rules were changed. But nowhere does it say so.