Hawkshadow
First Post
That's an interesting tactic your players are using. I think the real problem is your players have found a good tactic and are over-using it. You only have to foil the tactic a few times to get the players working on a new tactic.
Here's one way you could tweak the next encounter without changing the stats on anything (or changing the rules). What if stuff is obscuring the location of the NPC spell caster? Since they are in a dungeon, there's going to be lots of echoing, so they won't be able to pinpoint the location of the NPC through sound. If they can't locate the NPC spellcaster, then they're just going to be guessing about where to put the silence spell.
Here's one way you could tweak the next encounter without changing the stats on anything (or changing the rules). What if stuff is obscuring the location of the NPC spell caster? Since they are in a dungeon, there's going to be lots of echoing, so they won't be able to pinpoint the location of the NPC through sound. If they can't locate the NPC spellcaster, then they're just going to be guessing about where to put the silence spell.