First competitive team

[MajorTemples]

Hello, this is my first team I'm going to make for competitive battling. The pokemon I chose are a selection of the ones I like and are strong at the same time. I think it worked out pretty good but just want some people to check it since I have never done this before.
There are somethings typed bold those are the thing I couldn't figure out myself.
Pokemon, move sets, everything can be replaced if there is a better suggestion/solution.

Bronzong@Leftovers
Abbility: Levitate
EVs: 252HP/252Atk/4Def or SpD
Nature: Relaxed/Sassy
-Explosion
-Stealth Rock
-Hypnosis
-Gyro Ball
Extra info: will be my lead, IV of speed=0 because of the Gyro Ball

Roserade@Leftovers
Abbility: Natural Cure
EVs: 252HP/160SpD/96Spe
Nature: Calm
-Energy Ball
-Sludge Bomb
-Toxic
-Hidden Power Fire/Ice

Garchomp@Life Orb
Abbility: Sand Veil
EVs: 4HP/252Atk/252Spe
Nature: Jolly/Adamant
-Dragon Claw
-Earthquake
-Stone Edge
-Swords Dance


Infernape@Life Orb
Ability:Blaze
Naive Nature
EVs: 252 Spd/252 Atk/4 SAtk
-Fire Blast
-Close Combat
-U-turn
-Stone Edge

Excadrill@Leftovers
Abbility: Mold Breaker
EVs: 4HP/252Atk/252Spe
Nature: Adamant
-Earthquake
-Rapid Spin
-Rock Slide
-Swords Dance

Jellicent@Leftovers
Abbility: Water Absorb
EVs: 252HP/200Def/60Spe
Nature: Calm
-Recover
-Shadow Ball
-Surf
-Ice Beam