1. Very nice analysis as usuall. Though for the attack, your description does not go in deep to give the expression of an aatck. You can cause a barrage of weapons to fly towards the target and is that all? The opponent could utilize this lack of details and say the weapons phases through him since its a genjutsu and he used that to discover your trick. You could have gone further and say the kunai struck him like it would have in real life and he actually feels pain, blood loss which could leave to passing out in the illusion and in real life due to mental stress.
If I were to use this for attack, I'd make the air around my target suddenly become null so that he begins to axphisiate and would definitely pass out due to suffocation.
2. I did not get you defence very well though you know when you perform another jutsu, the illusion ends. I could use this to defend, say my opponent lunges forward to punch me, I could initiate the genjutsu and make a string wrap around the limb used for the punch and stop it from continueing towards me. SInce its sharingan genjutsu, you can actually let the user mimic the illusion in real life thus making the punch not reach. You can even send the punch back to the target by manipulating the strings in the illusion to pull towards the target, making the target punch himself in real life. awesome ain't it?
3. I like your supplementary though. Best out of the three. Changing how things look is supplementary. Making a technique look bigger than normal, Increasing the number of thrown weapons whereas, you only threw one. The example you gave in scene two can also fall under supplementary.
Good.
for the next one.
(Bōshi Magen: Kyouten Chiten) - Demonic Eye Illusion: Heaven And Earth Change
Rank:C-S
Range:Short-Long
Chakra Cost: N/A (equal to the cost of the countered technique)
Damage Points:N/A (equal to the power of the countered technique)
Description:This is a illusion counter were, through the use of their sharingan, an Uchiha can take control over an enemy illusionary techniques and reverse it back into the opponent by taking control of it and releasing oneself at the same time. With 1 Tomoe, it can affect C-Rank and below illusions. With 2 Tomoe it can affect B-Rank and bellow illusions. With a 3 Tomoe, it can affect A-Rank and below illusions. With MS/EMS it can affect S-Rank and bellow illusions. Can only be used once every two turns.
This allows you to reverse the illusion placed on you by your opponent using the sharingan. By reversing it, you release yourself at the same time. Give me a comprehensive scenario where a genjutsu is used on you and you reverse it while taking advantage of the enemy.