Desecrated Legguards

Desecrated Legguards is a tier 3 armor token. It can be exchanged along with various items at various NPCs at Light's Hope Chapel for the following items:
 * Redemption Legguards
 * Cryptstalker Legguards
 * Earthshatter Legguards
 * Dreamwalker Legguards

Source
This item dropped from Loatheb in the original version of Naxxramas.