Lemmy wrote:A few weeks ago, one of my player brought in a defense-focused character with really high AC... One of the enemies rolled an 16 and 18 and still couldn't hit him... But he realized the guy with a shield could only cause minor damage, so he moved on and started attacking the other PCs, who were easier to hit and could hit harder.That's how it should work. (Assuming the enemy was reasonably intelligent.) But for the next combat, the new enemy should take those same couple swings against him.
Well... Depending on how smart the enemy is, how familiar he is with shield tactics, how visibly armored are the other PCs and what resources the enemy has at his hands... It can be reasonable to assume the enemy is smart enough to avoid shield-guy without even trying to take a few swings first.
e.g.: Last weekend, a flying enemy decided to just snatch the soft-looking Bard and leave. It didn't even bother with the 2 armored characters... It did consider taking the Alchemist, instead, but that guy was carrying a Large breastplate and a Large scimitar. :P. Fortunately for the Bard, the other guys managed to deal enough to discourage the creature... So he dropped his intended meal and ran away.