Hidan, but actually good? That's awesome! As Byakuya said, everything is simple, but straight to the point. Your skills interact with each other in a meaningful way. You even included his immortality, and you've managed to find a brilliant way to do so without making it broken.
I might have some minor complaints, though.
* While it does give Hidan some survivability, the DD on the Scythe Release seems pretty pointless for your curse concept. I would probably remove that effect entirely to increase the damage to 20, or give an alternate effect that somehow favors the curse, such as affecting its duration if you use it on an enemy affected by "Sadistic Impulse".
* It might count as a harmful effect, but you've said nothing about the opponent not getting the healing effect Hidan gets. But that just takes a minor fix in wording.
Overall a great take on Hidan that I will always wish I had access to when I was streaking for Kakuzu. Good job, Laphy.
I might have some minor complaints, though.
* While it does give Hidan some survivability, the DD on the Scythe Release seems pretty pointless for your curse concept. I would probably remove that effect entirely to increase the damage to 20, or give an alternate effect that somehow favors the curse, such as affecting its duration if you use it on an enemy affected by "Sadistic Impulse".
* It might count as a harmful effect, but you've said nothing about the opponent not getting the healing effect Hidan gets. But that just takes a minor fix in wording.
Overall a great take on Hidan that I will always wish I had access to when I was streaking for Kakuzu. Good job, Laphy.