Prowl

Backstory
John was a mechanic working at a self-owned auto repair shop. One night, a meteorite crashed into the shop, and John was transformed, cosmic shadow energies seeping into his body, transforming him into a being of pure shadow. Ashamed of his appearance, John hid out in a cave. But the cave turned out be the hideout of mutant villain Eclipse, who had recently robbed a bank. John defeated him, locked him up, and donned the alias Prowl.

Joining the Team
Prowl was enlisted by Strike Ace to join his superhero team initiative, the Immaculates. On his first assignment, Prowl met his fellow team members: Captain Kungalla, Red Angel, Green Shadow, and the Saturan. Together they combined powers to defeat the mighty Urmaxas.

Trick-or-Treat
Prowl went solo after the mission and popped in between Immaculates missions and secretly aiding the newest hero team, the Trick-or-Treaters. After the defeat of Kilan, Prowl returned to the Immaculates.