Please don't use that font and that tiny size. Gave me a headache reading through the whole thing.
Anyway, very well explained.
Ninjutsu: Ninjutsu means "Ninja Arts" and is something that allows the shinobi to do something that a normal human can't do, like walking on water, manipulating elements, the usage of special as well as bladed weapons, stealth, transformation, etc. The effects of ninjutsu are real. Most of the time, it heavily relies on the usage of handseals as well as chakra. Regular ninjutsu doesn't incorporate the usage of elements for it, like stealth, a basic Rasengan, etc. Elemental Ninjutsu is an advanced form of ninjutsu, which incorporates the usage of basic 5 elements, as well as advanced combinations to create stronger jutsus which have the respective properties of the 5 elements. Elemental ninjutsu is stronger to regular ninjutsu, since regular ninjutsu only uses raw chakra, whereas, elemental ninjutsu uses both Shape Manipulation and Nature Transformation. The effects of Ninjutsu are real, unlike Genjutsu.
Chakra: "Chakra" is basically life essence or life force which exists in human bodies and animals. Without it, a shinobi can die. It can be considered "blood" and soul for a ninja. It is the molding of physical energies and spiritual energies in the body. Physical energy is the energy given off by the body cells and can be increased with more stamina and practise. Spiritual energy is derived from the consciousness of the mind and can be increased through great concentration and meditation. It is the basis for all almost all the ninja skills like Ninjutsu, Genjutsu, except Taijutsu in some special cases. It flows through the chakra circulatory system, and in it, there are 361 points aka nodes in the body known as tenkutsu. The function of the tenketsu is to regulate and control the flow of chakra. If these weren't present, then chakra would flow through some specific organ, thus there wouldn't be a balance in the chakra flow. Every ninja in the narutoverse possesses a chakra pool. Shinobis with a very high chakra pool like Naruto can perform a lot of higher ranked techniques like Multiple Shadow Clone Technique, etc. without having the fear of getting their chakra depleted at once. Senju Clan members for eg, have very high chakra reserves and a high physical energy aka high "Yang" energy, thus their naturally strong bodies and on the other hand, the Uchiha clan members have a very high spiritual energy, i.e. high "Yin" energy, thus their proficiency in genjutsu and visual prowess. It is possible to have high chakra if you possess very strong willpower. If chakra runs out completely in a shinobi, then he dies as shown when Kakashi died due to his chakra completely running out against Deva Pein. It can be divided into several types like:
Elemental Chakra
Senjutsu chakra
Bijuu Chakra
Handseals: Handseals are hand gestures, which primarily manipulate chakra and dictate the exact amount of chakra needed for the respective specific technique. Weaving of handseals makes chakra take different "patterns". Some techniques require a large number of handseals, which is related to the complexity of performing that technique and if not weaved properly, in order, or if the user loses focus in between, then the technique is either executed in a weaker state, or it is dispersed midway, depending on the specific technique. A good example is Water Dragon Bullet Technique. It was shown that the technique required a string of 44 handseals to perform, however the Second Hokage, Tobirama could perform it with a single handseal, due to his unparalled Water mastery. It is shown in the manga that with time, a shinobi after mastering the specific technique, requires one-literally no handseals to perform it, an example being Chidori, which required some handseals when Sasuke just learnt it. In our RP, the user can perform any 2 elemental releases of his choice, depending on the elements he has placed as specialties, with one-virtually no handseals/faster handseals. Usually, handseals are performed with both the hands, but Haku, Minato, etc have demonstrated the ability to perform it with only a single hand. The 12 basic handseals are Monkey, Ram, Dog, Horse, Dragon, Boar, Rat, Snake, Ox, Hare, Bird, Tiger.
Anyway, where exactly would you throw a flash bomb so that you're not blinded yourself?