First, I would like to say that you can legitimately kill Shandalar with unholy blight as a Cleric by simply walking off screen and spamming + resting. I haven't read this way of killing her before so thought I would share. Pretty much any character can kill her with wand of magic missiles by abusing talk -> kill, so this post is not about her.
This thread is about either exploiting talk -> kill in the game with the monk in order to kill Elminster fast, or just straight up kiting him with something that actually can hit him.
Legitimately, I have successfully defeated Elminster with a Thief by placing 6 traps and attacking him off screen. Poison abilities of the assassin / blackguard may also kill him based on youtube playthrough footage though I have not tried this myself.
Now on to the meat of the subject. I rolled a monk solo and wanted to gain the exp by killing Elmy and Shandalar and am failing to figure out how to do it fast, even with the talk -> kill exploit. I know you can kill him by successively rolling 20s on the dice but it takes an eternity to do it. Maybe the blades offensive spin would work well here though I haven't tried this. Weirdly enough, THAC0 does not influence the hit chance!
I used a sling at the beginning and managed to hit him a couple of times with 80 bullets. I then used a sling + 1 with bullets + 2 and managed to hit him twice again with 80 bullets. This took a LONG time.
My question for the Elminster killers on this board are, how the !"£$ do you kill Elmy with a solo Monk without spending an hour or two doing so, given that he is extremely magic resistant and monks cannot use the majority of wands?
At first I thought maybe darts of wounding would be able to take care of him, but then I realised that the chance of him actually getting poisoned by the dart is low since he will almost certainly save vs spell. If anyone knows a trick that I haven't thought of please post it!
Edit #1: Wand of Heavens fails as does Potion of Explosions, no darts of wounding until BG?
Edit #2: You can use a 1-handed weapon with single weapon proficiency to increase the chance of crit by 5%. This is all I've found so far.
Edit #3: Well, in the end I just killed him without exploit with a sling by getting him stuck in some trees. Took some reloading though.