This is what I'm planing. A half-dragon fiendish centipede sorcerer who leads a swarm of normal monstorous centipedes in a dungeon to attack the party with his breath weapons and spells. Secretly he is an elite member of a cult called "The church of a thousand legs" where a red dragon lets his minions (fiendish half-red dragon centipedes) read from the Tome of clear thought to have 10 int. and the elite read from the Tome of leadership to have 10 Cha. The elite seek out swarms of normal centipedes to lead into battle (part for food, part for enjoyment of the dragon)