I topped the ladder (for the moment, at least) under "Altilt"
I tried out Volkraken for a bit, but it just hasn't worked out. After taking the first 2 losses on the account from people using non-volkraken teams vs me, I ended up dropping Volkraken all together and took a team I was using on the Suspect Ladder and slightly modified it. It was pretty clear after facing other teams using Volkraken in and outside of its intended core, that it really doesn't do anything. It couldn't accomplish much vs a standard team (especially slow sets), which is what really counts. It has strong BST and decent typing, but god its abilities really are worthless since they serve no use outside of basically its forced, incredibly tiny intended niche. The parts of this CAP obviously made sense individually, but I just feel that in general (this is all CAPs for the past long time, not just this one) where the parts are considered more than the whole due to the very segmented process of CAP, and when the CAP comes together, it's either everything it was supposed to be and more, or just completely falls apart. Volkraken was very much the latter. If Volkraken was in Pokemon, it'd be UU, BL at best, since it simply does not work. It has an awful speed tier, bulk that just barely works for its typing, and 135 SpA simply isn't a major selling point anymore.
Volkraken poorly supports Latias/Lucario core, and unlike Voodoom that miraculously supported Zapdos very well, Volkraken has essentially no niche in the meta, and cannot effectively support any core. You cannot run a slow set abusing analytic because you're already too naturally fast and going slow just means slower mons creep past you and kill you, and the bonus from switch-ins is negligible in the long run. Infiltrator effectively stops SubToxic Aegis and basically nothing else. Fire/Water without some form of recovery only serves to be a Stealth Rock weak burden while not offering the incredible power like Zards, Thundy, Talons, or Pinsir does. It doesn't have any sort of defensive or offensive niche that allows it to deal with almost any top threat. When Volcanion comes out, nobody will even use Volkraken in CAP anymore, Volcanion is essentially a straight upgrade since all the better parts of Volkraken are still really awful (his speed and abilities).
tl;dr Volkraken is, at best, a complete failure.