However, through the lens of our rpg googly goggles we can imagine a more dire situation. Since I spend a lot of time on Los Angeles beaches, I'm aware of all the filth, muck and oceanic herpes that continually bathe the sandy beaches where sand crabs live and burrow. Combine pollution with a full moon or some other foul magick and poof! Sand crabs swarms that are all too eager to add man flesh to their diet.
Anyone wandering into a 10' x 10' stretch of wet sand will provoke a sand crab swarm. The beasts are voracious and attack in maddening numbers. The attack is unrelenting as flesh is quickly peeled from limbs to reveal muscle, tendon and bone. Stats below.
|Sand Crab Swarm: Armor Class 14, Hit Dice 3d8, Hit Points 13, Attacks 1 bite at +2 to hit, Damage 1d6, Move 5' (crawl) or 10' (burrow), XP Value 100, Treasure none, Special: The swarm is immune to sleep and charm effects. Lightning attacks are quite effective and do double damage to the swarm. The swarm can occupy the same space as its target(s). Since the swarm can occupy a 10' x 10' area, it can attack up to four targets at the same time, assuming there are four targets in each 5' square.|
I see quite a few of the non-murderous variety of sand crabs at the beach. Below is a vid I made of this morning's outing. Enjoy!