Spiked Armor: Stupid?
It isn't, really (although it's not all that historical, either, but, hey; it's fantasy)! There are a lot of places where spikes wouldn't get in the way, and could be used as "Off-Hand Weapons", as the rules describe...
1) Spiked Steel Codpiece. This pre-athletic supporter deflects and injures an incoming enemy knee. "You knee me in the groin? Okay, take 1D6 damage, plus my STR Bonus, Orc-face!"
2) Spiked Greeves. Spikes at the top, protecting the kneecaps. When the knee is bent, the spike is exposed, allowing a knee to the groin to do even more damage (and not be an Unarmed Strike, which provokes an attack of opportunity). What is it the original
Oriental Adventures called greaves? Shinobi?
3) Spiked Bracers/Dastana. Bracers covering the arm from wrists to elbows, with the spikes attached to the rears of the elbows, where they are out of the way, when the arms are straight, but make an elbow smash even more (puncture) damaging.
4) Breastplate Shoulder Spikes. A pair of spikes coming off the breastplate over each shoulder, in a reverse "C" (so that they wouldn't prevent the vambraced arms from being raised). Shouldering someone aside becomes a real attack.
5) Spiked Helmets. Now these are historical! Headbutts, in melee, are not all that uncommon!
6) Spiked Gauntlets. If you're going to wear gauntlets, there's no reason not to wear these. They can't be disarmed, easily, and are better than an Improved Unarmed Strike (in most cases).
Now the typical D&D armor seems to be the "spiked all over" type, which is less useful, and certainly not what you want to be caught out in the woods in ("Help! I'm stuck!") Still, if you're fighting Ropers, Giant Purple Worms, Remorhaz, or anything else with Improved Grab/Swallow Whole, then I can see it... Even if it seems a bit silly.
