Some suggestions for this OU team please

Question

Sceptile-Mega @ Sceptilite
Ability: Lightning Rod
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
- Giga Drain
- Dragon Pulse
- Focus Blast
- Hidden Power [Ice]

Klefki @ Leftovers
Ability: Prankster
EVs: 248 HP / 8 Atk / 252 Def
Impish Nature
- Play Rough
- Foul Play
- Thunder Wave
- Spikes

Rotom-Wash @ Leftovers
Ability: Levitate
EVs: 248 HP / 80 Def / 8 SpA / 172 SpD
Calm Nature
- Volt Switch
- Hydro Pump
- Will-O-Wisp
- Pain Split

Excadrill @ Air Balloon
Ability: Mold Breaker
EVs: 104 HP / 152 Atk / 252 Spe
Jolly Nature
- Earthquake
- Rock Slide
- Rapid Spin
- Swords Dance

Talonflame @ Leftovers
Ability: Gale Wings
EVs: 106 HP / 252 Atk / 150 Spe
Adamant Nature
- Flare Blitz
- Brave Bird
- Will-O-Wisp
- U-turn

Scizor @ Choice Band
Ability: Technician
EVs: 88 HP / 252 Atk / 168 Spe
Adamant Nature
- Bullet Punch
- U-turn
- Bug Bite
- Superpower

Comments

I think Roost would be better for Talonflame to help recover recoil damage instead of Will-o-Wisp. It's meant to punch big holes in enemy Pokemon, not spread status. Also, I think Life Orb is better than Leftovers for that extra damage and OHKO potential. Sure, you'll be dead after a few KOs but that is a good ratio and worth the sacrifice.