From the Advanced Edition Companion to Labyrinth Lord:
Creeping DoomLevel: 7 Duration: 4 rounds per level Range: 0When the caster utters the spell of creeping doom, a mass of centipedes, insects, and arachnids is called forth. The swarm occupies a volume of 20′ square, and can be commanded to swarm any target within 80′. The swarm moves at 10′ per round, and will consist of (1d6+4)x100 individual bugs, each of which deals 1 point of damage and then dies. If a swarm occupies the same area as a target, as many bugs attack as the creature has hit points. The remaining swarm may be commanded to attack a new target in range. If the swarm moves beyond 80′ from the caster, 50 of their number wander away. An additional 50 wander away per 10′, so that if they are 100′ away, 150 have been lost.
Now that, friends, is a spell.
or as they say in RuneQuest, viaduct?
thanks, chico.