Ivan was one of the Darkling's most favored Grisha. He was a powerful Corporalnik Heartrender and was one of the few Grisha to possess an amplifier.
He cant stand Polina's short temper and everytime she shouts. He was eventually tested by a Grisha Examiner and taken to a school to be trained as a Grisha. He was asked to travel with the Darkling, an honor Ivan gladly accepted.. He eventually became one of the Darkling's favored Grisha and was given permission to claim an amplifier for his own. 