Hi, just putting out a few ideas:
[]Chakra Shock:
This is a skill.
The user can project chakra like electricity and scramble an opponent's chakra wiring. The effects range from missing a step to coma. The effects are stronger with increasing chakra flow in the target. It will momentarily paralyze a jonin or knock out a super-alligator, but prove a mild annoyance to a genin.
---> This is not a chakra overload. It does not require a huge amount of chakra, since it only chaotically redirects chakra instead of halting it.
Uses: Immobilize targets for our Main Character to kill with Taijutsu. With a moment's forewarning, it removes alligators' chakra enhancements and reverts them into the lumbering meat mountains they should normally be. Basically, it stops instakills, and removes targets when used in conjunction with support (our main character).
[]Hand holding:
This is a bloodline.
Essentially, it is genjutsu without genjutsu. It is closer to medical jutsu than psychological. When the user touches the target, they gain access to the central nervous system and physically modify how their brain functions. It acts on the brain's biochemistry, controlling higher level functions like thoughts and intentions by gaining access to endorphins and neurone function. The effects last as long as the two are in contact and the target needs a few seconds to recover after contact is lost.
----->This is not genjutsu. It doesn't act upon the target's thoughts or perception on things.
Uses: Perfect for a village strategy, but can work on animals. In a village strategy, it turns anyone into a submissive puppet as long as the two are in contact. You can convince a villager, or even a ninja, to do something by controlling their mental state when the orders are suggested to them. Since it is not genjutsu, it does not leave the traces, and the suggestion endures as long as someone doesn't question their own hard-coded beliefs.
[]Chakra battery:
This is a bloodline-assisted skill.
Pretty self-explanatory. The user can store and redistribute chakra. Although achievable through a teachable skill, the user's particular bloodline makes this skill very easy to use. A chakra battery with stealth or evasion skills and keep the two other members of the team topped up for longer engagements, or multiple engagements per day.
---->There is an upper limit on chakra capacity, and it is only regenerated up to the natural limit. If the natural capacity is 1d, it can be overfilled by an external source up to 3d, but only regenerates to 1d afterwards.
Uses: Straightforward uses are powering up the other two team members so that they have an easier time in the swamp strategy. Depending on how civilian chakra networks are different from ninja networks, the other two team members can dump their chakra in the battery and walk into a crowd with a much lower chakra signature.
[]Bottomless Bag:
A skill this time.
A severely restricted space-time ninjutsu technique. With careful preparation, the user can shunt objects into a pocket dimension. People, too. Taking things out of this dimension is easier and faster than putting things in. It works by slowly assimilating matter that has been coated by the user's chakra. This prevents huge objects, moving objects, fluid objects and concentrated chakra from being transferred.
----->Unlike sharingan jutsu, it doesn't teleport anything the user sees, forcefully, into this dimension. The object has to be immobile, prepared and usually unconscious or willing to be transferred into the pocket dimension. This dimension is timeless, so no magical training grounds.
Uses: Simple. This is a very versatile jutsu despite its slow action and various limitations. You can store weapons and seals and walk into an enemy village without being worry. You can hide your teammates in this pocket dimension, and turn a 1 vs 1 into a 3 vs 1. This is also perfect for a Smuggler-archetype character.
[]Strategy: Agents
Instead of sending Mist ninja into a leaf village and expect them to remain undetected and unnoticed, send villagers. Capture a villager, convince them that they are working for a bunch of friendly guys, and have THEM go into the village and interact with their own kind.
[]Strategy: Meat
Kill a giant animal, feed the camp for days. Skin it, and try to sell an exclusive product.
[]Strategy: Bad Men.
Pose as criminals being hunted by Leaf police, and do some work for the seedier parts of the village. Smuggling, assassination, protection detail... things thugs would do, not ninja. Build a reputation, convince the villagers that it is in their vested interest to help them escape for the 'law', and eventually try and gain employ for a criminal underworld boss. This mafia gang, not ninja village. If a mafia exists, then it has its own ninja we can join up with, and has proven, effective methods to escape Konoha patrols.