Harpoon is a member of the team of mutant hunters known as the Marauders.
Powers

Harpoon is able to charge objects with various forms of bio-energy and use them as projectiles. These objects when released, explode or disintegrating matter on contact. He can stun, paralyze or kill living beings with these charged items (Gambit has similar powers as Harpoon, but Harpoon predates Gambit by 4 years).

Harpoon's weapon of choice is a harpoon, 5 ft. long with a barbed head.

Base figure Tigershark
Thor head
Apoxie work and finally full repaint