Collects Reptil (2021) #1-4, Avengers: The Initiative Featuring Reptil (2009) #1. Reptil - the dinosaur-powered graduate of Avengers Academy - is on the brink of extinction! In the wake of his grandfather's worsening health, Humberto Lopez has taken a step back from crimefighting to focus on his family. Perhaps it's a sign that he should give up on becoming a hero and finally come to terms with his parents' mysterious disappearance…or perhaps not! When a mysterious figure ambushes Humberto, what unravels will shake the core of everything that Reptil thought he knew about his past. And it will either change the course of his future - or end it forever! Plus: Relive Humberto's sensational debut! When Stegron the Dinosaur Man launches a campaign of destruction across America, the Avengers Initiative needs a new recruit - and Reptil is just the hero for the job!