Klakk

Klakk were bat-like Rahi that were created by Mutran. They could create powerful sonic screams, which could quell a Makuta, destroy the barrier that keeps light from naturally returning to a being, and reverse the effects of a shadow leech, Avsa, or Gorast's stinger, thus changing whoever was affected by any of those things back to normal. The first Matoran to return from being a Shadow Matoran to normal by the Klakk was Vican.They also eat niaseks.

Set information

 * The Klakk is a Brickmaster exclusive set for September-October 2008.
 * It is set number 20005.
 * It has 38 pieces.
 * It is recommended for people 7+.