Kulta

Kulta, also known as Skull Grinder or Lord of the Skulls, is the leader of the Skull Creatures and one of Makuta's minions.

History
Kulta's past before becoming a minion of Makuta is unknown. Before the Toa arrived at the Ancient City to awaken Ekimu, Kulta found and took the Mask of Creation from its pedestal on the bridge to the Ancient City. Then he set out for Ekimu's Forge, where he planned to destroy the mask - likely to increase the importance of Makuta's Mask of Ultimate Power when he reawakens, as his power would then be unopposed. When he finally started the furnace to melt the Mask of Creation, Ekimu and the Toa arrived. When Ekimu told him that they would get the mask long before it melted, Kulta placed the Mask of Creation on his face, explaining that once he had defeated the Toa, he would accomplish his plan.

He easily defeated the Toa and severely damaged their Golden Masks, but the Toa distracted him long enough for Ekimu to rebuild his Hammer of Power. Ekimu knocked the Mask of Creation off of Skull Grinder's face, defeating him.

Powers and Tools
Kulta can drain the power from Golden Masks, and when wielding the Mask of Creation, can defeat the six Toa in one blow.

He wields a Mask Stealer Staff, which he uses to snatch masks from his opponent's faces and drain their power. He also wields a Hook Blade as a side arm. As well as his weapons, he also has dark power flowing through him, which he channels into his minions to make them stronger. He created the skull army with his dark powers and controls it with his mind.

Quotes

 * "I will have plenty of time, once I have destroyed you." - Putting on the Mask of Creation

Set Information

 * Kulta appears in the set "Mask Maker vs. Skull Grinder", along with Ekimu.
 * Kulta and Ekimu can be combined with the Skull Scorpio set to create Kulta's modified form when donning the Mask of Creation.
 * Ironically, the online Bionicle comic shows that Kulta's form doesn't change when he wears the Mask of Creation, although his power increases dramatically.