Zach was one of the young students Emma Frost
sent to delay Sage
when they came to the Xavier Institute searching for Jeffrey Garrett
. He later lost his powers after M-Day. He was possibly killed in Stryker's missile attack on the former students.
Zach could psionically imprint the primal characteristics of any animal onto another, causing them to think and behave as another creature would. He also had a rat like face due to his mutation.