That was fixed in Generation 5, actually.
How about a non-attacking set (Taunt bait I know) with
-Torment/Taunt
-Substitute
-Protect
-Spite
Also, don't you guys think a Psych Up set could be viable? Specially if you are trying to counter Reuniclus and/or Conkeldurr.
What kind of threats does Spiritomb face this gen?
Like last Gen Spiritomb has barely a place in the OU enviroment, because it simply can't take most of the attacks thrown around in OU it also has no resistances outside of its three good immunities, but they are just not enough. Almost every attacker can muscle through spiritomb since it lacks relieable recovery, a strong (useful) stab and with its good awful speed it also has difficulties to burn a physical attacker before getting KOed. Its also vulnerable to all kind of hazards and i feel that both spikes and t-spikes got more common this gen.
If this wasn't enough it simply lacks a niche, as a defensive Ghost and Spinblocker its totally outclassed by Jellicent and Dusclops both have better defenses and the former also has access to instant recovery and an argueably better secondary typing.
The good news are it completly counters CM Recover Reuniclus something that almost nothing else can do, however this is often not enough to be worth a spot on a team.
In UU, much like last gen, things look a little better for Spiritomb as the attacks hurt much less allowing tomb to actually survive a hit.
personally, i find it kinda funny that GF saw fit to fix a glitch that only needs to be resolved for hacked pokemonThat was fixed in Generation 5, actually.