( Magen: Nijū Kokoni Arazu no Jutsu ) Demonic Illusion: Double False Surroundings Technique
By performing three handseals, you can created a layered illusion, completely changing the surroundings of your opponent. Now, since it's double layered, when one illusion is released, the other one automatically goes into effect, therefore your opponent wastes two moves dispersing your Genjutsu, ultimately giving you the advantage. Now, a good side is, what I said earlier, it being double layered, once one's gone, the other one will automatically kick in. Now the bad side, both of them can be dispersed at the same time by an outside source of chakra, or if they're hurt bad enough.
( Konoha-Ryū: Yanagi ) - Leaf Ninja Art: Willow
Waving your sword infront of your opponent causes them to think you have multiple arms, that are flailing around. I don't really like this one either, so imma keep it short. An advantage is it confuses them, meaning if you're about to engage in hand-to-hand combat, you can perform this and have them think you have multiple arms. Not only will they be startled, they'll be off-guard, giving you the chance to strike. A disadvantage is, it requires a sword to perform. Therefore without a sword, this jutsu is absolutely useless.