Need help on a solo team

[Lognale]

Im the new Rock gym leader in the bidoof league. wanted dragon gym or various gym but they where taken. Im running aerodactyl archeops tyranitar armaldo aurorus and cradily/carracosta. and im getting wreck every match. i need help plz help my solo rock team. my strongest one is tyranitar it knows dragon dance and cradilys def and spdef are super high for the record.

 

[PlatinumDude]

Aerodactyl should ideally be in its Mega form because Tough Claws gives it a much-needed power boost on its contact moves:
-Stone Edge
-Ice Fang/Aqua Tail
-Earthquake/Fire Fang
-Aerial Ace/Stealth Rock
Nature: Adamant
EVs: 252 Atk/4 Def/252 Spe
Item: Aerodactylite

Since Flying Gem isn't available in X/Y, Archeops has to make do without an item:
-Stone Edge
-Acrobatics
-Earthquake/Earth Power/Heat Wave
-Roost
Nature: Jolly/Naive
EVs: 252 Atk/4 Def/252 Spe
Item: none

It takes a lot of chain breeding to do, but Armaldo is best played as the Rapid Spinner to clear away entry hazards:
-Stone Edge/Rock Blast
-X-Scissor/Earthquake
-Stealth Rock/Toxic
-Rapid Spin
Nature: Impish
EVs: 252 HP/252 Def/4 SDef
Item: Leftovers
Ability: Battle Armor

Aurorus has plenty of common weaknesses. That's something you should be wary of:
-Nature Power (becomes a Refrigerate-boosted Tri Attack in Wi-Fi battles)
-Ancient Power
-Freeze-Dry/Thunderbolt
-Encore
Nature: Modest
EVs: 252 HP/252 SAtk/4 SDef
Item: Leftovers

Cradily needs Recover to function at its best, or even RestTalk:
-Swords Dance
-Stone Edge/Seed Bomb
-Earthquake
-Recover
Nature: Adamant
EVs: 252 HP/252 Atk/4 Def
Item: Leftovers
Ability: Storm Drain

or
-Curse
-Seed Bomb/Rock Slide
-Rest
-Sleep Talk
Nature: Careful
EVs: 252 HP/4 Def/252 SDef
Item: Leftovers
Ability: Suction Cups

Carracosta is either played as a supporter or a Shell Smasher:
-Shell Smash
-Stone Edge
-Waterfall/Ice Beam
-Aqua Jet/Ice Beam
Nature: Jolly/Naive
EVs: 252 Atk/4 Def/252 Spe
Item: Lum Berry/White Herb/Life Orb

or
-Stealth Rock
-Waterfall
-Stone Edge
-Aqua Jet/Toxic
Nature: Adamant/Impish
EVs: 248 HP/252 Atk/8 Def (Adamant) or 248 HP/252 Def/8 SDef (Impish)
Item: Leftovers
Ability: Solid Rock

 

[Zeffy]

It would help us better if you'd have posted movesets of your Pokemon, and whether you are playing through Wi-Fi (that is, using a 3DS) or through a battling simulator like Pokemon Showdown. If this league is through Wi-Fi, I would highly suggest ignoring the above post, unless you are knowledgeable enough about breeding and EV training, as it is meant for the hardcore competitive battler.

But really, it would help if you provide the Pokemon's moveset, natures, hold items, and, if you are able to determine, its EVs.