Air Current Weapon Concealment Technique

Kuuha Bukigakure no Jutsu (Air Current Weapon Concealment Technique)
Ninjutsu (Fuuton; requires Chakra Control 9 ranks and Genjutsu 6 ranks or Hide 6 ranks) [Wind]
Rank: 7 (B-Class);
Range: 0 feet;
Effect: Conceals held melee weapon for up to 1 attack/4 levels (maximum 5);
Duration: 1 round/per charge or until discharged (D);
Saving Throws: None;
Chakra Resistance: No;
Chakra Cost: 7.

The user is able to create a distortion in the air around his weapon, concealing it from sight. The concealment lasts for up to 1 attack per 4 extra chakra, maximum 5, whether the attack hits or misses. The target must succeed a Dex check (DC 20 or attack roll, whichever is lower) or lose its Dexterity bonus to defense, even if the target can See Chakra or See Through Chakra.

The charges can also be released upon impact. If the user makes an attack with the weapon and discharges the technique, the attack does not benefit from the concealment effect but deals 50 points of wind damage per concealment "charge" (assuming one attack consumes one charge) left to the technique if it hits, not multiplied on a critical hit.

Material Focus: Held melee weapon.