It gets shit on by Bisharp but only Sub can avoid that. If you can get lucky and predict the incoming Bisharp you can OHKO with Focus Blast. I mean you'll miss of course but you'll scare your opponent a little.Assault Vest is complete Pursuit bait since it's slow and has no protection from Substitute. It also has no recovery, meaning that hazards, statuses and attacks are going to wear it down much more quickly than Conkeldurr or Goodra, who at least have either a form of recovery or extreme bulk.
Conkledurr is sorta shitty in OU right now (last I checked anyway) but is a competent AV user because it has multiple powerful moves that are hard to wall and recovery that almost but not really keeps it healthy.
Goodra has 90 / 70 / 150 bulk which isn't much different from Hoopa's 80 / 60 / 130. Bulk was never Goodra's problem, its issue was getting shit on by anything that could take a Draco Meteor and its coverage moves which was... a lot of Pokemon. Hoopa is sorta garbage too but at least it has the offensive ability to hurt things. Goodra is also UU where IMO Hoopa will end up.
Perhaps but I think Hoopa itself will have more trouble in Doubles than Hyperspace Hole will.Hyperspace Hole was intended for Doubles, where Protect is on nearly every Pokemon. While I wish it was 100 BP or so, it's not a completely useless move.
Specs is outclassed by basically every faster special attacker. Keldeo, Greninja, Thundurus etc.Also, please read my post from the other page. You won't be needing a gimmicky Assault Vest set to have Hoopa survive in OU.
Scarf hits as hard as a base 105 poke's 110 STAB (such as Heatmor Fire Blast). Not very hard without investment. It also dies extra horribly to Pursuit AND it is slow even with Scarf meaning it can't revenge kill anything that boosted its speed nor is it bulky enough to survive priority. If you need a Scarfer why not Terrakion or Landorus? Or if you need a Pursuit weak Scarfer why not Latios?
Sub will be okay, though I would slash Calm Mind with Psyshock since Sub CM Hoopa basically 6-0s stall besides those with Unaware Clefable.
Taunt beats stall too but why not just run any other Taunt stallbreaker? Gengar, NP Thundurus, etc.
I'd rather just run Lefties, although stealing Chansey's Eviolite would let you 2HKO it... That said Chansey can't break your Subs so you can't activate Sitrus Berry against it and "no item" runs the risk of stealing the item of something else (Chansey is utterly trashed by Trick / CM / Taunt so it wouldn't be my first choice of switch ins against Hoopa).Also probably a Doubles thing, since Sitrus Berries and the like are somewhat common. However, on certain sets in Singles like Sub + 3 Attacks, Hoopa can afford to carry a Sitrus Berry or no item at all, but I'd agree that Magician is still a poor ability for it and Delphox as a whole.