Kamina (Powerhouse411)

Kamina is the strongest of the digger bees and the signature summon of Oshiishi Kamizuru.

Physical Capabilities
Though initially no larger than any other digger bee, the means through which it is summoned allows it to utilize chakra - whether it be its own or chakra that has been transferred to it - to grow to a size that has yet to be surpassed by even the summons of animals that are much larger than digger bees.

By default, Kamina is ridiculously durable for something of its size. So much so, that even the largest summons will find it difficult to actually manage to inflict any amount of harm upon Kamina. To make matters worse for Kamina's opponents, the only means through which he will allow himself to be summoned will allow him to utilize any chakra within his possession to harden himself. Such hardening will make Kamina even MORE difficult to harm, to the point where a hardened Kamina has been compared to the Shield of Shukaku itself!

Kamina's drills are renowned for being able to pierce anything once he has undergone a sufficient amount of hardening. As a matter of fact, people have begun to refer to the hypothetical scenario of Kamina's Drills vs. the Shield of Shukaku as an Unstoppable Force Meets an Immovable Object. As of yet, the two entities have yet to clash.