User blog comment:Baakdraft/Jarvan III, King of Demacia/@comment-69.74.233.130-20130207142212/@comment-6316152-20130207144447

As with any ability scaling tweaks can be made to balance it out. But do take into consideration the fact it's essentially aiming 2 skill shots to acquire max damage and a stun. It's on par for same damage as Ahri's Q (knowing that AP is much easier to stack up than AD) and does not deal true damage so is easily mitigated by most non-carries, and Ahri's Q is on a 7sec cooldown. Then Nidalee's Q... Javalin chunking for 1k at rank 5 scaling at 65% AP and then Takedown scaling at 300% AD. Also, there's Olaf's Q and E which would push out substantially more damage, Q has 100% AD scaling, has a slow, and E is 340 true damage for nearly the same amount of mana. In all reality this Q is not out of line imo.