User blog comment:Emptylord/Custom Champion - Finn and Ebb the Tidehunters/@comment-5686533-20131113093954/@comment-5686533-20131113180157

Well #2 looks good for me, while #3 allows to delay the knockup for when needed, but I personnaly prefer #2.

About the fact I "seem to want to use it as an in-fight ability after you've already closed the gap", this is because, well :
 * Rip Current clears down a linear path towards a target, slows it and damages it, allowing to safely land a Nautical Assault.
 * Nautical Assault will then have no real problem to land its damage + knockup since the path is cleared and the target is slowed.
 * Because now Ebb is near the target, this extend Evasive Strike's range to get to the target, further damaging it in the process.

So you have damaged the target and his near it, so the most logical thing to me seems "an in-fight ability" that will also have a great chance to finish it. If the target survives, well, Ebb the Dolphin/Otter enhanced attacks will do the job.