Haha, I like this thread. It's quite peaceful, despite you saying that :P . And also a good way to express creative ideas! Good on ya Zephyr!

Ninja Art: Explosive Sacrifice

Deidara collaborates with Hidan, who's in DBP mode. Deidara surrounds Hidan with C3s then *s it all up. The victim feels all of the pain, and dies.

Illusionary Puppet- Itachi breaks the opponents mind with a Genjutsu, allowing Sasori to work on the opponent. He turns them into a puppet.

Explosive Bite of the Super Water Shark- Kisame performs Super Water Shark Bomb Jutsu, Tobi jumps in, holding dozens of minefield bombs. The shark slams against the opponent, and the bombs explode.

It must be Akatsuki Collaboration Jutsu night

Shukketsu no kokoro no panchi (Punch of the Bleeding Heart)
It is a punch, that when charged up drains all your stamina and chakra, and places it into the fist. This fist is then combined with the main elements, and takes immense base strength to be able to throw the punch. When it hits someone, it disconnects the veins to heart, stopping the hearts pumping, making it burst. Killing them instantly, but will make you feint right after you use it.

Did you take the idea from Rakudai Kishi no Cavalry?
Sounds quite similar like Itto Shura to me.

Haha! Someone found my reference. I combined My Hero Academia's One for All as well as Itto Shura into one massive ball of over poweredness. And this was the result.

Hell Style!
A mixture of Inferno, Lava, Fire and Earth Style.

Pretty much, very overpowered version of Amaterasu. But it can be safely used to enhance your attcks to become more damaging. You can shape your flames, its intensity and size. It can be easily cooled down by the user. And it van easily burn off the flesh of a peron, leaving a charred skeleton

I knew it, Itto Shura was a too good move not to use! :D

Ninpo: Insutanto Ansatsu Jutsu
Can only be achieved by a skilled sword wielder. It allows for your body to move at a quicker rate, locking onto a target. This is when the sword splits into 5 reflections of the nature types, spins into a spiral stabbing the target, instantly killing them.

Kinda remind me of this a lil' bit ~ https://www.youtube.com/watch?v=4gX-DPCV4pQ

Everyone seems to be finding my references today. ;P

Ninpo: Zendatsu

Requiring very high chakra usage and as well as very refined chakra control. The user slows down his perception of time and gains enhanced strength and soeed. If one wields a sword, their sword starts to vibrate and can slice through anything.