Raging Sea Technique

Gekirou no Jutsu (Raging Sea Technique)
Ninjutsu (Suiton) [Water]
Rank: 6 (B-Class);
Area: 25-ft.-radius emanation centered on the user (see text);
Duration: Concentration (up to 1 post/level) plus 3 posts;
Saving Throws: None or Reflex negate (see text);
Chakra Resistance: No;
Chakra Cost: 7.

The user is able to create a mild whirlpool in the water and worsen the swimming and navigating conditions. For the duration of the technique, the state of the water in the area of effect will worsen by 1 category (calm to rough, rough to stormy).

By spending a full-round action concentrating on the technique, rather than an attack action, the user may worsen the condition by an additional step, up to a maximum of stormy. If the water conditions were initially reduced to stormy when performing the technique, creatures currently walking on water must make a Reflex save to avoid being pushed 5 feet into the water and being forced to swim back onto the water surface to stand.

If the state of the water is already stormy, the user can concentrate for a full-round action and push swimming creatures within range 1d6x5 feet downward, or down to the maximum depth of the body of water he is currently in, unless they succeed a Swim check (DC 30); creatures with a natural swimming speed are unaffected. To perform this technique, the user must either be swimming or standing over a body of water, and may
only maintain concentration as long as he remains in contact with the affected waters. The area does not move with the user, but he is unaffected by the worsened conditions and may swim normally as per the conditions prior to using the technique.

Empower
The user may spend an additional 1 point of Chakra to increase the radius of the emanation by 5 feet, up to a maximum of 100 feet total.