Greater chaos servant is a type of monster in ADOM. They are generally found late in the game, are summoned en masse by chaos wizards and also appear in large groups in the Mana Temple and D:50. Greater chaos servants are able to quickly regenerate, have corrupting attacks, and see invisible. Whilst of course they are somewhat tougher and stronger than their lesser counterparts, strangely enough they do not share their ability to poison the PC on damaging hits.