This power grants the user access to the unique chakra — said to resemble the unique chakra of the Sage of the Six Paths greatly — that gives rise to the Teiōgan.
This green tinted chakra greatly enhances the user's abilities in a transformation known as the Teiōgan Burst Mode. It is speculated that this chakra is passed down from Ryun Uchiha, who bestowed his children and descendants with his own Six Paths chakra, granting them unique abilities as a result. This theory is strengthened due to the fact that Teiōgan Chakra, when mastered, allows one to drawn on the energy of nature, advancing the Burst Mode to the Teiōgan Sage Mode — which yields the Truth-Seeking Balls, a trademark of Ryun's.
When used offensively by Echo Uchiha, this power coats his blade in an eerie aura of chakra. After creating an incision of any sort on his opponent, the "chakra drug" enters their blood stream, severely torturing them. Like any other drug, it must be fueled by something. Rather than metabolism, this drug feeds off of chakra itself, and when the victim runs out of chakra, the body shuts down. This particular aspect of the chakra doesn't seem to apply to Abura Clan members, or others who use the chakra.