I think the best BWAH? moment me and some friends caused was in a Forgotten Realms evil campaign.
To try and show us how evil things would get, he pulled out the book of Vile Darkness.
Amongst the many things he was using, was some sort of pit that you dip a goblinod into and get a big ass monster, anything else in it takes a slow amount of acid damage till it dies.
We busted in, took over the goblin tribe, then discovered the acid damage was 1 point less than what trolls could regen.
So we threw all the tribes trolls in the pit. >
This is also the campaign where we had rust monster goblin cavalry, Gelatinous cubes for catapult ammo and a red wizard that was a god with transmutation.
By the end of the campaign, we had taken over at least 2 kingdoms and the DM said we were never to play a full evil campaign again
To try and show us how evil things would get, he pulled out the book of Vile Darkness.
Amongst the many things he was using, was some sort of pit that you dip a goblinod into and get a big ass monster, anything else in it takes a slow amount of acid damage till it dies.
We busted in, took over the goblin tribe, then discovered the acid damage was 1 point less than what trolls could regen.
So we threw all the tribes trolls in the pit. >
This is also the campaign where we had rust monster goblin cavalry, Gelatinous cubes for catapult ammo and a red wizard that was a god with transmutation.
By the end of the campaign, we had taken over at least 2 kingdoms and the DM said we were never to play a full evil campaign again