Core Challenge #27 - Ghost Team

Hey guys, Lemon here. I haven't been using Ghost for too long but I have experience and am actually now a Ghost user. Today, I will be showing the team I used for the Core Challenge #27 for Ghost, Froslass + Golurk.
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The Team (importable):

Valentine (Froslass) @ Focus Sash
Ability: Cursed Body
EVs: 248 HP / 8 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Thunder Wave
- Taunt
- Spikes
- Destiny Bond

Baymax (Golurk) @ Focus Sash
Ability: No Guard
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Stealth Rock
- Dynamic Punch
- Earthquake
- Stone Edge

Lollipop (Gengar) @ Life Orb
Ability: Levitate
Shiny: Yes
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Pain Split
- Shadow Ball
- Focus Blast
- Substitute

Heartless (Sableye) @ Sablenite
Ability: Prankster
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
IVs: 0 Atk
- Recover
- Will-O-Wisp
- Calm Mind
- Shadow Ball

Smuckers (Jellicent) (F) @ Leftovers
Ability: Cursed Body
Shiny: Yes
EVs: 252 HP / 4 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Toxic
- Recover
- Scald
- Acid Armor

Vladimir (Aegislash) @ Weakness Policy
Ability: Stance Change
EVs: 252 HP / 252 Def / 4 SpD
Relaxed Nature
IVs: 26 Spe
- King's Shield
- Sacred Sword
- Shadow Ball
- Shadow Sneak

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Froslass - This is pretty much my lead against any team. I can paralyze potential threats, stop Pokemon from setting up, set up hazards, and, in most situations, get a kill with Destiny Bond. Froslass is such a good lead against many teams due to it's amazing speed stat, not to mention that it's one of the fastest Ghost type has. Focus Sash allows it live any hit (barring attacks that hit multiple times), and the given EV spread enables Froslass to outspeed many Pokemon as well as boost up its HP to live a certain priority hit since no other EV stat is needed to be raised.

Golurk - Golurk is necessary on Ghost as it's the only Pokemon on Ghost that can set up Stealth Rock. It helps very much against Normal and Dark due to its ability, No Guard, with the move Dynamic Punch. The Focus Sash allows it to survive any hit and retaliate with massive damage, or set up rocks. I run Stone Edge for coverage, though you could run Curse for opposing Mega Sableyes and other set-up mons. The EV spread is to maximize its attack power and make it as fast as possible because it isn't living a hit anyway.

Gengar - This set may be odd, but I found it to be very effective during laddering. Substitute helps immensely vs. Bisharp allowing it to sub up on a Sucker Punch and proceed to Focus Blast. Pain Split is to weaken foes when it's low and/or recover its HP because Substitute takes 25%. Shadow Ball is for STAB, and Life Orb helps Gengar hit very hard. Other options include: Focus Sash Destiny Bond/Counter + 2 Attacks, 4 Attacks Life Orb, Focus Sash 3 Attacks + Destiny Bond, and more as Gengar is very versatile.

Sableye - Very standard set. Handles physical Dark users very well as it can burn and cripple them with priority. I feel like I need to run Calm Mind because my team doesn't have any set up mons which are, to me, very important in Pokemon. This set is meant to sweep late game when the checks and counters to Mega Sableye are gone by means of Aegislash, Gengar, and Jellicent. The EV spread is to maximize its defense because it can Calm Mind up. You can opt for Dark Pulse instead of Shadow Ball, or even Dazzling Gleam, but I feel like Shadow Ball is its best option because it can get Special Defense drops on Pokemon that would wall Sableye.

Jellicent - Jellicent is such a great Special Wall in conjunction with Aegislash and Sableye. Jellicent takes the fire attacks aimed at Aegislash, Aegislash takes the grass attacks aimed at Jellicent and the fairy attacks aimed at Sableye, and Sableye takes the ghost and dark attacks aimed at both. Toxic is a good status move to wear down walls like Meloetta, Scald is to burn and its only attack, Recover for recovery, and Acid Armor to set up on physical Pokemon that are threats. Will-O-Wisp is also an option instead of Acid Armor, though I just think it's a bit redundant with Scald and Toxic.

Aegislash - Aegislash, like Golurk, is necessary. Also, like I mentioned before, the core of Jellicent/Sableye/Aegislash is definitely a very good one. Max HP, Max Defense is to live an Earthquake from the following Pokemon: +2 Mega Pinsir, +2 Mega Altaria, Life Orb Excadrill, etc... The other physical move that can threaten Aegislash is Flare Blitz which it can just King's Shield on. Weakness Policy is a great item because Aegislash can tank almost any hit and will instantly be boosted in both Attack and Special Attack. The IVs and Nature are so that Azumarill outspeeds it. Other options may include Sub Leftovers, and Swords Dance.
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Well, there's the team. I hope, if you are reading this, that you understand how it works. If you have any questions, please feel free to contact me under the name 'LemonJello88' on the Pokemon Showdown server. I am usually in the Monotype room. ^_^