Subako Subako no Mi

Subako Subako no Mi (Hive Hive Fruit) is a Paramecia-type Devil Fruit which bestows upon its consumer the ability to utilize physical contact to integrate the consciousness of an unconscious individual into his or her own in order to form a hive mind where the individual with the most willpower serves as the hive king/queen. It was eaten by ???.

Advantages
The consumer is capable of utilizing physical contact to integrate the consciousness of an unconscious individual regardless of whether or not the individual is unconscious as a result of falling sleep or being knocked out. Thus defeating an individual isn't a requirement in order to have his or her consciousness integrated into the hive mind. It should also be noted that it is much easier for the consumer to assemble an army than an it would be for the average individual.

Disadvangtes
There is NO guarantee that the consumer will be the hive king/queen of the hive mind he or she has created. Thus the consumer should take caution to not integrate the consciousness of those with superior willpower or else he or she will risk becoming a slave instead of being the slaver. Other than that the consumer suffers from the standard Devil Fruit weaknesses.