The character also appeared in Avengers Arena, a series by Dennis Hopeless and Kev Walker for Marvel NOW!.

In the same year, Reptil was featured in a self-titled limited series written by Terry Blas and penciled by Enid Balám.

Humberto Lopez is a young boy who had registered with the Fifty State Initiative and was living with his grandfather.

With the help of Baron Von Blitzschlag, who creates a device to enhance Reptil's powers, the team locates Stegron.

Reptil suffers a mild concussion and Dr. Cooper tells him that his rash behavior allowed Stegron to escape, and he endangered the lives of his teammates.

[3] In Heroic Age, Reptil is captured, imprisoned in a government facility, and experimented on to see if he has the ability to fully become a dinosaur.

By accessing secret computer files, the students realize that, rather than because they showed promise, they have been chosen for the academy because the staff believes they have the greatest potential to go rogue and become supervillains.

He opens up to her and they talk about many of the things that have been troubling him including his parents, but he keeps his concerns about his fellow students and the academy itself private.

[7] On a day trip to New York, the students encounter Arcade, during which Reptil meets Spider-Girl, and they quickly become friends.

He develops great leadership skills and is able to guide the team against Absorbing Man and Titania's attack on the Infinite Mansion during the Fear Itself storyline, especially now that since his connection with his future self, he can turn his entire body into a dinosaur without losing control and change his body mass by turning into larger and smaller beasts.

[10] However, his future self cannot cope with the guilt of killing fellow students, so he contacts Veil and Jocasta, who are able to defeat Hybrid.

When Sebastian Shaw attempts to free the mutants, the Avengers Academy students side with them, so Tigra feints defeats and allows them to escape.

[15] In Avengers Arena, Arcade abducts Reptil, Mettle, and Hazmat from the Academy and brings them to Murderworld.

[17] During the King in Black storyline, Reptil and Spider-Man battle a swarm of Symbiote Dragons while attempting to rescue civilians.

[18] Following the events of Outlawed,[19] superheroes under the age of twenty-one have been made illegal, forcing Reptil and his grandfather Vincente to move in with his aunt Gloria Quintero and twin cousins Eva and Julian.

As they prepare for an upcoming Mexican heritage event, Reptil faces off against a new villain named Megalith who has the answers to what became of his parents.

[20] Eva is revealed to be a witch in training, via online courses, while Julian creates a new outfit for Reptil to face new threats.

However, after briefly possessing the body of his future self in a fight against Korvac, he retains the ability to fully transform into a dinosaur.