Delphox should be moved up to B+: I've used this on a team as an experiment, and it worked out very well. It's arguably one of the best choice users in the entire tier, as you can build your stats around the choice item you put on and even invest in some special bulk (which it does not lack in btw). It has good neutral coverage in fire/psychic STAB moves (except for houndoom... *sigh*) and if it gets bored of being choiced, it can switcheroo its item to something that doesn't want it e.g. CM reuniclus, cresselia, spiritomb, etc. and it can run one coverage move. Most people recommend grass knot for Rhyperior but that is seeing less use atm bc of all the mega steelixes running around. I recommend dazzling gleam for actual damage to houndoom, which is able to 2HKO if specs, and for the ever more popular tyrantrum. (it was also used for Pangoro as well but that left lol.) Also, it has become one of the best special attacking fire and psychic types in the tier, respectively, sitting at a nice 114 special attack. It also has an awesome speed tier, allowing it to outspeed houndoom and do damage to it with dazzling gleam before it 2HKO's with dark pulse, and outspeed base 100's like Mega Glalie as well. Delphox should be moved to B+.