Summoning Techniques | Kuchiyose 感知
The Ninja Art of Summoning; Kuchiyose is founded upon the principles of a single technique: the Summoning Jutsu. While any shinobi can learn this technique, only those with this Skill are able to master it to such a degree as signing a secondary contract and even creating their own custom contracts. Only the highly trained can tame even the wildest of beasts Those without this Skill are lacking in their affinity for new and unused summons, therefore limiting them to signing existing contracts and only calling upon creatures that are C-Rank and lower. Stamina determines how big a creature can be summoned, and how many, as it takes not only a hefty toll on the user, but requires a certain caliber of shinobi to summon certain higher level creatures.
Unlock: Access to higher ranked techniques and customs within this skill type.
Perk: Can create their own custom contract based on a creature set of their choice.
Free: Can only sign already existing contracts. Can only summon creatures up to C-Rank.
I would like to suggest a minor, teeny-tiny change so that this jives more with Canon depictions of Summoning.
"Free: Can create and sign existing or custom contracts, however users are restricted to C-rank and below Summons. Summons cannot use Custom Techniques."
Why you ask? Because in canon, Summoning is considered a Ninjutsu. It wasn't until Sasuke Uchiha revealed the Hawk Summoning (Obito's: "Where did he get that?!" comment) that we learned Shinobi can sign multiple contracts, thus the need for a Summoning Skill.
However we have several cases where Shinobi simply partner with the animal casually--Gai with his Tortoise-- or use a species with Jutsu-- Kisame and Itachi with their Sharks and Crows. In these instances, the Summoning never gets above C-rank. Kisame probably made his contract to fit his
(Note I'm avoiding the weird, and unexplained use of "Summoning: Item" in the canon, because there's no way "Summoning: Lightning Blade Creation" and similar techniques require contracts)
So what I'm proposing here, is to let Summoning function slightly more like the Canon to allow players to create custom Summons without the Summoning Skill, but the capabilities are limited in scope. A cap at C-rank restricts the capabilities of the species, through stats and techniques, and without the Summoning Skill it couldn't advance. Thus they would eventually need to invest in the Summoning Skill to improve the contract.