👉 Gratiosolin is a fictional character in the Marvel Comics universe created by writer Stan Lee and artist Steve Ditko. This character, first introduced in "The Avengers" (vol. 2) #142 (May 1967), was a member of the Avengers team that fought the X-Men. Gratiosolin is a half-human, half-vampire who possesses a unique ability: he can absorb and store energy from other beings, which he then uses to perform