Upgrade your account to a Community Supporter account and remove most of the site ads.
Enchanted Trinkets Complete--a hardcover book containing over 500 magic items for your D&D games!

Reply to thread

Message: <blockquote data-quote="Norfleet" data-source="post: 1339612" data-attributes="member: 11581">Pressure isn't really harmful unless it changes rapidly, or the creature in question contains a pressure difference. Pressure is only potentially damaging if a creature contains an environment of a different pressure, which causes force to be applied to creature. Thus, it's possible for humans to actually dive fairly deeply with scuba equipment, because the scuba equipment feeds pressurized atmosphere to offset the external pressure of the water. Submarines, on the other hand, can be crushed by pressure because they contain a standard-pressure atmosphere internally, and thus a large pressure difference can build up between the inside and outside of a submarine. Squid, on the other hand, can survive both deep and shallow water because their bodies don't have this internal pressure problem: They lack bones, lungs, or any other systems that induce a pressure difference. Con, and Fort saves, are entirely irrelevant to how it works. It should be noted that the atmospheric pressure at the Earth's surface is actually very strong and crushing! All you have to do to see this is to suck the air of a pop can, and watch as the pressure causes it to instantly implode. Yet people feel nothing, because their internal body pressure is the same as the atmospheric pressure.Therefore, a Sahuagin or Aquatic Elf would survive just fine in the depths. If you suddenly teleport one from the bottom of the ocean to the surface, however, it will instantly explode. If you teleport one from the surface to the bottom of the ocean, it will be immediately crushed. If it travels naturally at a pace it deems comfortable, then it will be fine.</blockquote>

Verification