Unless it is a feature similar to the 'Sing' ability of the pirate hero, I could not ever tell if it is working or not.
My harlequins used it about 20 to 30 times in total. Never an enemy was said to resist it, but not a single one was made to auto-attack my stack.
If the 'auto-attacks' are supposed to happen sometime during the AI turns, it is hard to say if the taunts were effective or not. The three living Calabim units fortified on a hill did not even blink after six taunts during the six turns I tried. However, the Clan Ogre stacks did suicide themselves on my Beastmasters fortified in a forest after the taunts, but I'd expect them to do that anyway.
Patch 'o'.
My harlequins used it about 20 to 30 times in total. Never an enemy was said to resist it, but not a single one was made to auto-attack my stack.
If the 'auto-attacks' are supposed to happen sometime during the AI turns, it is hard to say if the taunts were effective or not. The three living Calabim units fortified on a hill did not even blink after six taunts during the six turns I tried. However, the Clan Ogre stacks did suicide themselves on my Beastmasters fortified in a forest after the taunts, but I'd expect them to do that anyway.
Patch 'o'.