Creeping Doom

When the druid utters the spell of Creeping Doom, he or she calls forth a mass of from 10D20 venomous, biting and stinging arachnids, insects and myriapods. This carpet-like mass will swarm in an area of 5ft square, and upon command from the druid will creep forth at 5ft per round towards any prey within 10ft, moving in the direction in which the druid commanded. The Creeping Doom will slay any creature subject to normal attacks, each of the small horrors inflicting 1 hit point of damage (each then dies after their attack), to that up to 200 hit points of damage can be inflicted on creatures within the path of the Creeping Doom. If the Creeping Doom goes beyond 10ft of the summoner, it loses 10 of its number for each 1ft beyond 10ft. There are a number of ways to thwart or destroy the creatures forming the swarm, all of which methods should be obvious. The insects can’t target a creature who is flying and aren’t considered magical.