Jowazagan

The Jowazagan (除技眼, Literally meaning: Disruptive eye, Meaning (Viz): Interruptive Eye) is a dōjutsu kekkei genkai.

Overview
This dōjutsu grants the wielder the ability of suppress Ninjutsus, Genjutsus and even Dōjutsus. Advanced Jowazagan users can permanently eliminate some techniques or knowledge about chakra nature, forcing the victim to relearn these techniques. By sacrificing an eye, a wielder can destroy a enemy's dōjutsu for ever, meaning each user can destroy two enemy's dōjutsu.

Abilities
Since this dojutsu consumes large amounts of chakra, what Jowazagan is capable of depends on each user.

Most of the inexperienced wielders can only supress either ninjutsu or genjutsu for a short period of time.