NAZE

Naze's body was destroyed by a Dire Wraith in #187, who then mimicked his appearance. This Wraith was then killed by the Adversary in #188, who took on Naze's appearance himself. All this happened without Storm, Forge, or anyone else knowing the true Naze was dead, until the Adversary played his hand in #224. However, Naze has since returned, apparently back in physical form.