need help with my team, thoughts and advice

[Mainprince]

Hi i am brand new to the battling world of pokemon and am finding it quite hard to win anything!! heres my team:
Jolteon with thunderbolt, toxic, double kick and charge. Holding volt plate
5IV tyranitar with sand stream. earthquake, stone edge, crunch and dark pulse. mega
building up a gliscor its only gligar atm with 5iv immunity
arcanine 5iv with toxic flamethrower thief and wild charge adamant
a really crappy scizor but looking for a better one atm
gengar god knows the iv. not hopeful! with hypnosis dream eater hex and dark pulse

any advice would be appreciated. again i am a complete noob so be gentle please

 

[PlatinumDude]

Jolteon is outclassed by other Electric Pokemon in OU such as Wash Rotom and Thundurus (both formes) because both have better utility moves and/or coverage:

Wash Rotom:
-Volt Switch
-Hydro Pump
-Will-o-Wisp
-Pain Split/Rest
Nature: Bold
EVs: 248 HP/216 Def/44 Spe
Item: Leftovers/Chesto Berry

or
-Volt Switch
-Hydro Pump
-Thunderbolt/Will-o-Wisp
-Trick
Nature: Timid/Modest
EVs: 4 Def/252 SAtk/252 Spe
Item: Choice Scarf

Incarnate Thundurus:
Thundurus:
-Thunderbolt
-Hidden Power (Ice)
-Focus Blast/Taunt
-Thunder Wave
Nature: Timid
EVs: 4 Def/252 SAtk/252 Spe
Item: Leftovers/Life Orb
Ability: Prankster

or
-Nasty Plot
-Thunderbolt
-Hidden Power (Ice/Flying)
-Focus Blast/Psychic/Thunder Wave/Substitute
Nature: Timid
EVs: 4 Def/252 SAtk/252 Spe
Item: Life Orb/Leftovers
Ability: Prankster

or
-Thunderbolt
-Knock Off
-Superpower
-Hidden Power (Ice)/Fly
Nature: Naive/Jolly
EVs: 76 Atk/180 SAtk/252 Spe or 252 Atk/4 Def/252 Spe
Item: Life Orb/Power Herb
Ability: Defiant

Therian Thundurus:
-Nasty Plot
-Thunderbolt
-Hidden Power (Flying)
-Focus Blast
Nature: Timid
EVs: 20 HP/252 SAtk/236 Spe
Item: Life Orb

or
-Agility
-Thunderbolt
-Hidden Power (Ice/Flying)
-Focus Blast/Psychic
Nature: Modest
EVs: 4 Def/252 SAtk/252 Spe
Item: Life Orb

or
-Nasty Plot
-Agility
-Thunderbolt
-Hidden Power (Ice/Flying)
Nature: Modest
EVs: 156 HP/252 SAtk/100 Spe
Item: Life Orb/Leftovers

Mega Tyranitar should only use Dragon Dance, as it has enough Speed to take advantage of the Speed boost. Its physical prowess is better than its special prowess:
-Dragon Dance
-Stone Edge/Crunch
-Ice Punch/Fire Punch/Crunch
-Earthquake
Nature: Jolly
EVs: 252 Atk/4 Def/252 Spe
Item: Tyranitarite
Ability: Sand Stream

Gliscor's best set is this, IMO:
-Earthquake
-Toxic
-Protect
-Substitute/Knock Off
Nature: Impish
EVs: 244 HP/100 Def/160 Spe
Item: Toxic Orb
Ability: Poison Heal

Half your team is weak to Water with Arcanine on the team; that's bad, considering how widespread this attacking type is. I'd use a Water resist like Ferrothorn, Goodra, Gastrodon or Amoonguss on the team instead of Arcanine for this reason:

Ferrothorn:
-Stealth Rock/Spikes
-Leech Seed
-Gyro Ball/Thunder Wave
-Power Whip/Protect
Nature: Relaxed
EVs: 252 HP/216 Def/40 SDef
Item: Leftovers/Rocky Helmet
Ability: Iron Barbs

or
-Leech Seed
-Protect
-Power Whip
-Stealth Rock/Gyro Ball/Knock Off
Nature: Impish/Relaxed
EVs: 252 HP/48 Def/208 SDef
Item: Leftovers
Ability: Iron Barbs

Goodra:
-Draco Meteor
-Fire Blast
-Sludge Bomb/Thunderbolt
-Dragon Tail
Nature: Quiet/Sassy
EVs: 248 HP/252 SAtk/8 SDef
Item: Assault Vest
Ability: Gooey/Sap Sipper

Gastrodon:
-Scald
-Earthquake/Earth Power
-Ice Beam/Toxic
-Recover
Nature: Relaxed/Bold
EVs: 252 HP/252 Def/4 SDef
Item: Leftovers
Ability: Storm Drain

Amoonguss:
-Spore
-Giga Drain
-Sludge Bomb/Foul Play/Hidden Power (Fire)
-Stun Spore/Clear Smog
Nature: Bold
EVs: 252 HP/252 Def/4 SDef
Item: Black Sludge
Ability: Regenerator

The only non-Mega Scizor set you should use is Choice Band, since your Mega slot is taken up:
-U-turn
-Bullet Punch
-Superpower/Brick Break
-Pursuit/Knock Off
Nature: Adamant
EVs: 248 HP/252 SAtk/8 SDef
Item: Choice Band
Ability: Technician

Hypnosis + Dream Eater is a waste of time; the opponent can just switch to negate Dream Eater. Gengar is better off all-out attacking or predicting with Substitute:
-Substitute
-Shadow Ball
-Will-o-Wisp
-Disable/Sludge Bomb/Sludge Wave/Focus Blast/Taunt
Nature: Timid
EVs: 28 HP/148 SAtk/80 SDef/252 Spe
Item: Black Sludge

or
-Shadow Ball
-Sludge Bomb/Sludge Wave
-Focus Blast/Thunderbolt
-Destiny Bond
Nature: Timid
EVs: 4 HP/252 SAtk/252 Spe
Item: Life Orb/Focus Sash

 

[Mainprince]

ok Thanks! massive help!! i was also looking at maybe using blastoise and electrive in some battles but I'm going to work on the information you've given me :D cheers

 

[Nah]

Electivire isn't really good anymore. It used to be great back in the days of D/P/Pt, but now its too frail and its Speed and power fall a bit short. Blastoise is fine, but it needs to be in its mega form:

-Blastoise w/Blastoisite
Nature: Modest/Calm
Ability: Mega Launcher
EVs: 248 HP, 252 Sp.Attack, 8 Sp.Defense
Moves: Rapid Spin, Scald/Hydro Pump, Aura Sphere, Dark Pulse/Dragon Pulse

And to add to the long list of Water type resists:

-Vaporeon w/Leftovers or Lum Berry
Nature: Bold
Ability: Water Absorb
EVs: 248 HP, 252 Defense, 8 Sp.Defense
Moves: Scald, Wish, Protect, Toxic/Heal Bell

 

[Anti]

For the record, Electivire has always been mediocre, even in DPP. Too weak. Long live Electabuzz!

Anyway, this seems to be an in-game team looking to become competitive? I'd practice on a sim some with your ideal team (perfect IVs etc.) before you actually breed and build it so you know that what you're building is worthwhile. In any case, PlatDude pasted all the sets but I've got to disagree with the recommendations of Gastrodon (what is this accomplishing?) and Goodra (takes hits well but is kind of a do nothing Pokemon, but it's not horrible), but Mega Tyranitar is a really solid building block once you get an idea of what you're running. But it's sort of up to you to figure it all out.

And Smogon's Dex is a great resource which you should utilize. Or whatever form it's in now.