Zeus

Zeus is a thundercloud homie created and formerly owned by Big Mom, that she summoned from her left hand. It is a special kind of homie, as it received a soul fragment from Big Mom herself.

During the escape from Totto Land, Zeus was captured by the Straw Hat Pirates and forced to become Nami's servant. However, it has seemingly accepted its new role, as it now lives inside her Clima-Tact. As a result of this, he has effectively become Nami's newest weapon.