Gairam

Gairam is a member of the World Pirates.

Weapon
He carries a large two faced hammer; both the faces of the hammer are cube-shaped. It's unknown if it was designed that way, or if he makes it that way with his Devil Fruit.

Devil Fruit
Gairam ate the Kyubu Kyubu no Mi, which allows him to turn things into cubes and stack them. He has used this to create a cube maze inside their ship, meant for trapping enemies, and he can also compress the air, or make people into a cube.

Major Battles

 * World Pirates vs. Marines and World Government
 * Gariam vs. Luffy
 * Gariam vs. Galdino and Buggy (interrupted by Boa Hancock)