http://wiki.pokemon-online.eu/wiki/Gastly/5th_Gen_LC Spoiler ==General== *Usually outclassed be Misdreavus *Great Special Attack *Unique typing *Decent Speed ==Set 1(Substitute)==: Gastly (M) @ Oran Berry / Life Orb Trait: Levitate EVs: 68 HP / 40 Def / 200 SAtk / 200 Spd Modest / Timid Nature - Substitute - Sludge Bomb - Shadow Ball - Hypnosis / Hidden Power [Fighting] / Thunderbolt Set Comments *Hits incredibly hard with Life Orb and Modest. *Oran Berry for longevity, which is important especially since you’re using Substitute. *Sludge Bomb and Shadow Ball as main STAB attack. *Hidden Power Fighting could be used to hit Stunky *Hypnosis the crux of this set. It enables Gastly to get passed a few of its checks/counter. *EV’s are to increase Gastly’s offensive capabilities, while the leftover EV’s are placed to give Gastly some bulk. *Timid nature to outpace Modest Gastly as well as Natu *Modest nature if you really want the power. ==Set 2(Choice Scarf)== Gastly (M) @ Choice Scarf Trait: Levitate EVs: 68 HP / 40 Def / 200 SAtk / 200 Spd Modest / Timid Nature - Trick / Destiny Bond - Hidden Power [Fighting] - Shadow Ball - Sludge Bomb Set Comments *With Choice Scarf equipped it makes Gastly a great revenge killer. *Choice Scarf boosts Gastly’s already fast speed to greater levels. *Trick to cripple most defensive pokemon like Porygon and Munchlax. *Destiny Bond could be used as a last minute sacrifice in order to stop a potential sweep. *Again Sludge Bomb and Shadow Ball is used as STAB attacks. *Hidden Power Fighting rounds Gastly’s coverage as it gains perfect neutral coverage. *EV’s are the same as on the Substitute set. *Appreciates the removal of Sucker Punch users. ==Other Options== *Disable is an option over Hypnosis on the Substitute set, which functions similar as Gengar in Wifi OU. *Gastly receives Thunderbolt which it can use to KO Water-types *Gets Status inflicting moves like Will-O-Wisp and Toxic. *Pain Split *Hidden Power Fire to hit Ferroseed and other Steel-types hard. ==Checks & Counter== *Ferroseed walls Hidden Power Fighting and Hidden Power Fire less Gastly. *Stunky, Houndour and Pawniard *Faster Pokemon like Misdreavus can KO Gastly, but must watch out for the Scarf set. *Murkrow *Munchlax and Porygon must be wary of Modest versions as they get 2HKO’d
The first set should have Sub, Sludge Bomb, Shadow Ball, HP/Hypnosis/Tbolt imo Should mention Pain Split in OO, it's not great but it exists. You referred to its speed as middling but it's faster than Pokémon we've referred to as fast before. Overall looks good.