SM OU new player, how's my team? 1400+ OverUsed (Five days Player).

[CruellaShowdown]

Ferrotorn (Leftovers) (Iron Barbs)
252HP / 4ATK / 252DEF. (Relaxed).
-Stealth Rock
- Leech seed
-Thunder wave
- Gyro ball

Zapdos (Leftovers) (Static)
252HP / DEF232 / SPE24. (Bold).
-Volt Switch
-Heat Wave
-Hidden Power Ice
-Roost

Tapu fini (Leftovers) (Misty Surge).
248HP / 244DEF / 16SPD. (Calm).
-Moonblast
-Nature's Madness
-Taunt
-Defog

Serperior (Leftovers) (Contrary).
252SPA / 4SPD / SPE 252. (Tímid).
-Substitute
-Leaf Storm
-Glare
-Hidden Power Fire

Garchomp-Mega (garchompite) (Rough Skin).
252ATK / 4SPD / 252SPE. (Jolly).
-Earthquake
-Stone Edge
-Outrage
-Poison Jab

Greninja-Ash (Waterium Z) (Battle Bond).
252SPA / 4DEF / 252SPE. (Timid).
-Water Shuriken
-Scald
-Ice Beam
-Dark Pulse

1400+ Elo in three days using this team!

 

[maroon]

Hi, welcome to Smogon! I'm locking your RMT for the time being as the forum rules require that you provide at least 3 lines of 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.

Here are some OU Resources in the meantime:
Sample Teams: https://www.smogon.com/forums/threads/usm-ou-sample-teams-v2-up.3638845/
Viability Rankings: https://www.smogon.com/forums/threads/usum-ou-ultra-viability-ranking-thread.3621329/