Hyoton has its uses, but they are so rarely needed that it is potentially useless. If I had to give it a different purpose though I'd say make Hyoton a buff that applies to the user when it hits an enemy that increases the potency of the user's Throwing Dagger for the duration. 10s should be fine I suppose. Reason: Throwing Dagger really needs some love. People may think that making it buff Throwing Dagger is useless too, but you still have to consider the fact that Ninja isn't in a bad spot atm and buffing it would only call for a nerf on something else of theirs.