SM OU My First OU Competitive Team, Can Anyone Help me?

[Derstoronius]

So, i am a noob, but after watching some tutorial videos i created a team that i think is pretty good. So, is it a good team? If not, what changes can i do to make it good? (Also, english isn't my first language, sorry if i make any mistakes).

Amoongus
Item: Leftovers
Ability: Regenerator
EVs: 252 HP / 4 Sp. Atk / 252 Sp. Def
Nature: Calm
Moves:
-Spore
-Energy Ball
-Synthesis
-Toxic

Magnezone
Item: Air Balloon
Ability: Magnet Pull
EVs: 252 HP / 252 Sp. Atk. / 4 Sp. Def.
Nature: Modest
Moves:
-Hidden Power Fire
-Thunderbolt
-Volt Switch
-Flash Cannon

Gliscor
Item: Toxic Orb
Ability: Poison Heal
EVs: 184 HP / 252 Attack / 72 Speed
Nature: Adamant
Moves:
-Defog
-Earthquake
-Swords Dance
-Ice Fang

Conkeldurr
Item: Life Orb
Ability: Iron Fist
EVs: 252 HP / 252 Atk. / 4 SpD
Nature: Adamant
Moves:
-Thunder Punch
-Ice Punch
-Fire Punch
-Mach Punch

Greninja-Ash
Item: Leftovers
Ability: Battle Bond
Evs: 252Sp. Atk / 4 Sp. Def / 252 Speed
Nature: Timid
Moves:
-Surf
-Ice Beam
-Dark Pulse
-Hidden Power Electric

Charizard-Mega-X
Item: Charizardite X
Ability: Tough Claws
EVs: 252 Atk. / 4 Sp. Def / 252 Speed
Nature: Jolly
Moves:
-Dragon Dance
-Dragon Claw
-Fire Punch
-Thunder Punch

 

[TPP]

Welcome to Smogon! I'm locking your RMT for the time being as the forum rules require that you provide in-depth descriptions for each Pokemon to explain their roles. Please read the rules carefully and take a look at Team Showcase to see the level of detail we require. PM me with updated descriptions and I'll be happy to unlock this.