Name: Nintai (Endurance)
Canon/Custom: Custom
Rank: A
Element: Raiton
Type: Nintaijutsu
Range: Self
Description: Requires handseals. This will send electric chakra throughout the user's nervous system allowing them to dull their sense of feel. With this active, they will be able to shrug off all non-fatal damage like it is nothing. Also with this activated, they may survive one fatal technique per use with only moderate injury, unless that fatal injury is to the heart or a decapitation, or to the brain directly. Basically it will heal any major arterial damage, or even a sliced vital instantly, save the heart or brain. After this it will deactivate. If this is done, it may only be used once per topic. Otherwise, lasts for 5 posts with a cooldown of 10. (For this, think Kenpachi Zaraki tough, just shrugging off every attack that slices him because it isn't fatal, and then taking a huge blow to the jugular and living.)

Name: Shounetsujigoku (Burning Hell)
Canon/Custom: Custom
Rank: B
Element: Katon
Type: Ninjutsu
Range: Battlefield (30 meters in diameter)
Description: Requires handseals. The area will be surrounded by a ring of fire with the ground transforming to look like molten rock, though it is perfectly safe to walk on. The fire is extremely hot and made to keep people in though if they can endure the fire they may leave the area. Anyone in this area may not use anything that enhances the senses in any way shape or form. Meaning no special ninjutsu that enhances hearing may be used, no doujutsu may be used to enhance vision or to see anything special. This is an equalizing area making it so that two people can fight on equal grounds. Any offensive jutsu may be used, any defensive jutsu may be used, but anything that enhances senses is nullified. Lasts for 7 posts with a 16 post cooldown.

Can Nintai be deactivated early by the user, or does it have to last all five posts?

So Burning Hell makes it impossible to use doujutsu or special sensory enhancements for anyone within the topic? How long does this last, and does it have a cooldown?

1: No it cannot, it must either last all 5 posts or endure a fatal blow to deactivate.

2: Edited in a cooldown and a time limit. And only for people within the 30 meter ring.

EDIT

Name: Nadaregakure Kinjutsu (Unnamed)
Canon/Custom: Canon (Technically)
Rank: S
Element: User's Elements
Type: Ninjutsu
Range: Self
Description: Passive technique. This jutsu, written in a forbidden scroll will teach one how to merge their chakra with earth on a whole new level. Upon learning to use this Kinjutsu, the user will undergo a minor metamorphosis in their body shape. This technique creates mouths on the hands and chest of the learner, and through these mouths, any earthen substance (minerals and combinations of minerals) that enters the mouth can have chakra infused into them. Different chakra natures allow for different effects. Any jutsu involving use of the chakra imbuement of this technique, are all considered 2 ranks higher in power. The downfall is that the user will gain and insanity that makes them to some degree, obsessed with anything involving their primary element, and as such, use it more often, generally in tandem with this technique. From this point on, every 3rd jutsu they buy has to be of their primary element, and at least half of those must also involve this technique. If this is not followed, this technique will no longer work, but still take up their jutsu slot. As such, none of the jutsu involving this technique will work either, and will still take up a jutsu slot each. The only way to recover is to purchase this jutsu again, and it will take up ANOTHER S-Rank jutsu slot.

BUMP