Deathcry first appeared in Avengers #363 (June 1993) and was created by scenarist Bob Harras and penciller Steve Epting.
Deathcry has entries in the All-New Official Handbook of the Marvel Universe A to Z (2006) #3 - Copperhead to Ethan Edwards, The Marvel Encyclopedia and Official Handbook of the Marvel Universe A to Z (2008) HC vol.