which pokemon fits my last slot?

[wildfarfetchd]

this is my team so far

Gyarados (max speed, max attack) leftovers

taunt
dragon dance
bounce
aqua tail

Hyrdreigon (max speed, max sp.attack) life orb / choice scarf

roost
fire blast
dark pule
draco meteor

Mega Aggron (max D, max HP)

toxic
stealth rocks
iron head
roar

Rotom Wash (max sp.D, max HP) chesto berry

thunder wave
rest
volt switch
hydropump

Whimsicott (max D, max HP) leftovers

substitute
leech seed
stun spore
moon blast





i need another pokemon that can help support a gyarados or hydriegon sweep. im not sure if i want a rapid spinner, or defoger... anyways im mostly just looking for some opinions

 

[Nah]

I was thinking that a cleric would be a good choice for your last slot, to keep up Gyarados and Hydreigon's health and remove status effects that would hamper a sweep. Blissey, Clefable, Florges, and Sylveon are good choices. You could roll with a Spinner/Defogger too if you like, but your team isn't too weak to hazards.

Mega Aggron lacks any sort of recovery, so it can't make good use of Toxic. Give it Thunder Wave so it can parashuffle. It's also best to put EVs into its Sp.Defense, not its Defense. It's Defense stat is so godly that it only needs a +Defense nature to take physical hits well. Filter helps too. Sp.Defense EVs allow it to not be completely destroyed by special attacks.

Rotom-W should swap Thunder Wave with Will-o-Wisp, to soften physical blows from opposing pokes. Burn's a useful status effect.

 

[PlatinumDude]

Waterfall is the preferred option over Aqua Tail because it's more accurate and the flinch chance comes in handy. Also, bulky Gyarados should look like this:
-Taunt/Substitute
-Dragon Dance
-Waterfall
-Bounce/Earthquake
Nature: Adamant
EVs: 120 HP/64 Atk/100 Def/224 Spe
Item: Leftovers
Ability: Intimidate

Hydreigon is currently helpless against Fairies. This should help against them:
-Draco Meteor
-Dark Pulse
-Iron Tail/Superpower/Flash Cannon
-Fire Blast/Roost
Nature: Mild/Rash/Modest
EVs: 40 Atk/236 SAtk/232 Spe
Item: Life Orb

or
-Draco Meteor
-Dark Pulse
-Fire Blast/Earth Power
-Flash Cannon/Focus Blast
Nature: Modest
EVs: 24 HP/252 SAtk/232 Spe
Item: Choice Specs

Mega Aggron should be using either one of these sets; the latter one compensates for its lack of recovery:
-Stealth Rock
-Iron Head/Heavy Slam
-Thunder Wave/Ice Punch
-Earthquake/Rock Slide
Nature: Relaxed
EVs: 252 HP/16 Def/240 SDef
Item: Aggronite
Ability: Sturdy

or
-Rest
-Sleep Talk
-Iron Head/Heavy Slam
-Earthquake/Ice Punch
Nature: Relaxed
EVs: 252 HP/16 Def/240 SDef
Item: Aggronite
Ability: Sturdy

Physically-defensive Wash Rotom is preferred as well because of Talonflame. 248 HP/216 Def/44 Spe is the preferred spread in this case.

Even though Whimsicott has Prankster to make its status moves go first, Trevenant does SubSeed better because of its better offensive presence. Though Whimsicott has a wide support move pool, this set is best to use with it:
-Encore
-U-turn
-Memento
-Switcheroo/Stun Spore/Taunt
Nature: Impish
EVs: 252 HP/252 Def/4 SDef
Item: Lagging Tail/Leftovers
Ability: Prankster

Trevenant SubSeed set if you're curious:
-Substitute
-Leech Seed
-Will-o-Wisp
-Phantom Force
Nature: Impish
EVs: 252 HP/180 Def/76 Spe
Item: Sitrus Berry
Ability: Harvest

Cleric Blissey, Clefable and Sylveon sets for you (I think Sylveon does Florges' job better because of Pixilate + Hyper Voice. Both Fairies also have similar special bulk, but I feel that Sylveon gets the nod ahead of Florges):

Blissey:
-Aromatherapy/Heal Bel
-Soft-Boiled
-Seismic Toss/Flamethrower
-Toxic
Nature: Bold
EVs: 4 HP/252 Def/252 SDef
Item: Leftovers
Ability: Natural Cure

Clefable:
-Calm Mind
-Moonblast
-Wish/Moonlight
-Protect/Aromatherapy/Flamethrower
Nature: Bold
EVs: 252 HP/244 Def/12 Spe
Item: Leftovers
Ability: Magic Guard/Unaware

or
-Moonblast
-Wish/Soft-Boiled/Moonlight
-Protect/Flamethrower
-Aromatherapy/Toxic
Nature: Bold
EVs: 252 HP/244 Def/12 Spe
Item: Leftovers
Ability: Unaware/Magic Guard

or
-Wish
-Protect
-Moonblast
-Aromatherapy/Toxic
Nature: Calm
EVs: 252 HP/244 SDef/12 Spe
Item: Leftovers
Ability: Unaware/Magic Guard

Sylveon:
-Wish
-Protect
-Hyper Voice
-Heal Bell/Calm Mind
Nature: Bold
EVs: 252 HP/244 Def/12 Spe
Item: Leftovers
Ability: Pixilate