[quote=@Seraphicide]Uragiri Sakana - so he's a 16 year old Chuunin that knows both of Madara's A-ranked fire techniques? I'm not totally against the idea but I'm not totally sold on it either. And like is there a reason why he has an S ranked sealing technique with no other sealing knowledge? Again, I'm not totally against the idea but like sell me on it. [/quote]

I mean, fire jutsu are the most bland of all jutsu in Naruto. Even looking at these two jutsu there's nothing that really sets them apart because they're both just essentially 'I shoot fire at you lol'. If I condensed it like such and made it into a custom jutsu, you'd basically end up with EXACTLY the same thing with a different name and 'it's not Madara's jutsu' and that honestly seems like a waste of time for both of us, hence I kept them in. Also, now it takes two slots, shows off his proficiency in ninjutsu as he's meant to be a ninjutsu duelist, where as if I made it into one custom jutsu it'd be exactly the same thing and offer way less exposition because it'd not be an established jutsu. It just feels like, to me, it'd take away a lot of exposition if I made it into, say 'Sakana's fire bomb' or something dumb, ESPECIALLY if it'd be the same thing. 

Kinda hard to make fire jutsu more interesting than 'lol fire shoots in ur face xD!' imho. I can change it - I just think it'd be more work both for you and me for relatively little gain.

As for the sealing - I wanted to show off his devotion to fate, which to me could be showed by having a seal that activates upon death - he's gonna die one day according to fate and he'll never know why, but at least with a seal like this, he'd take down someone with him.

And because of that it doesn't really offer much because I'd have to let him die for it to do anything at all and even then it'd be plot related - because nobody is gonna stand there and let their character get sucked up by some random seal. 

I figured that with the way seals are relatively unexplained, it could've just been placed on him as Sakana has no knowledge or expertise in sealing techniques. Could've just hired someone to do it or asked a favor from someone. And if the activator is death, he doesn't even need to activate it himself, and thus needs no expertise. 

However, that's with sealing techniques being so random and unexplained that we're left to fill it in on our own as opposed to having a relatively clear idea of how they work.