Givigan

 Givigan was a Koll-indoctrinated general under Shaval and one of the most powerful sorcerers of all time. Givigan mainly commanded his force of Hosts and the Dark Awsecs during the War of Fire.  Much like Shaval and Colatt, Givigan's true identity is unknown, however he had in his possession one of the Jewels of Meldia which he used in battle. The last known user of the jewel was Coover before it was lost, it is therefore theorized that Shaval managed to resurrect Coover as Givigan and somehow reclaimed the lost Jewel of Meldia, however this will likely never be verified.

Givigan was defeated in the last year of the War of Fire during the 1st Battle of Viaduug. Givigan had reason to believe that a powerful resource was hidden in the forest and was led into a trap by a Strata division commanded by Field Master Ermus. The two magi engaged an a titanic battle of spells and wits until eventually Givigan was presumed dead even though his remains were never found. Considering no Koll activity aside from Colatt's appearance had occurred since the war's end, the Strata currently has no reason to believe he is still alive.