User blog:Mnzombie/Dragons Fangs

I was reading the pages for the Evil Pieces and Brave Saints when something hit me: if the angels and devils could replenish their number by reincarnating humans and other creatures then why can't dragons do the same?

Suppose a system like this did exist: what would it be called (I used the name "Dragon Fang" as an ex.), what powers would it give, what conditions would it have, how many could you reincarnate, etc.

I'm not really asking whether something like this could exist or not, I simply want to know how YOU would design the system if it were possible.

P.S. I'm righting a fanon right now and I'm think of having Issei be the first and only person to use this system as a way of increasing the number of dragons and building his harem so I'd really like some input from other fans. I'll add a list with my own ideas after I do a little brainstorming.