Itzl

The Lizardmen, particularly Skinks outside the temple-cities, worship the great god Itzl - the three-homed ruler of coldblooded beasts. The remaining temples of Itzl are always distant structures deep in the jungles of Lustria. Many feature great gongs, instruments rung only when sacrifices have been tied to attract Itzl's creatures out of the impenetrable forests to feed.

Source

 * Warhammer Armies: Lizardmen 8th Edition
 * pg. 34