Six tails chakra mode

Knowing all too well that the large slug form of the six tails would be more of a hindrance to Athos and his taijutsu abilities, he created the 6 tails chakra cloak in an attempt to make use of his incredible taijutsu skills while also enhanced by his loyal friend.

While this mode is active, the user gains a chakra shroud with six black dots spreading across the center of the users face while black lines form all over. The patterns on the shroud usually extend partway down the user's arms and legs, though in some instances they can extend further along the body .The user's eyes become blue when in this mode and whereas the demon slug cloak is red and releases chakra as acidic bubbles, this form's shroud is blue and releases chakra as dripping acid. While in this form, the user's chakra signature and smell are different.

While this form is not as powerful as the Nine tails mode, it still provides intimidating buffers for the one using it. There speed and strength are increased incredibly, on par with the enhancements made by the perfect sage mode. The users movements can be mistaken for a blue version of the flying thunder god technique, and their strength is augmented at a similar level.

Full Saiken Mode: By synchronising his heart with Saiken's, Athos is able to enter the complete version of Six-Tails Chakra Mode, referred to as Saiken Mode. In this form, Athos's shroud parts down the middle and opens up into a full-length haori, revealing a blue undergarment, and the black lines on his body thicken. Upon his forehead two antenna like appendages will form as well.

This mode once again increased his overall strength and speed to an even higher level, now outclassing the sage mode by a large margin. While unable to manifest a chakra entity like Kurama, the six tails is still able to manifest tailed beast bomb inspired abilities as well as acidic based attacks.