Seed of the Death Plant – This move is horrifying. Kurama only needs a quick opening to shoot his seed into the opponents body…
Oh grow up!
And…that’s it. He wins. You die. That’s not the worst part. You die…from having a huge flower bush grow inside of you incredibly quickly and then burst out of your body like a bunch of xenomorphs.
The only downside is that it does take a little bit of time to take root and feed from Kurama’s energy in order to bloom once Kurama wills it, so it’s not a quick end, but he’s definitely strong enough to hold his own for a few minutes against any opponent while it grows, so it’s just insanely scary. You could be dead and not even know it. And it’s never been shown if there’s a way to stop it. I’d guess removing it would be the most logical choice, but that not only requires detecting it or learning about it but also figuring out where on the body it was planted, precisely, and then getting the balls to dig it out of your own body somehow. And like I said, it doesn’t take that long to make the plant bloom, so you have to do all that within just a few minutes.
The best part of it is, the enemy is damn pretty when he dies. And you don’t even need to buy flowers for the funeral. It’s so cost-efficient.