Ok here's my advice:
Sylveon
Pretty standard set here, I bet we have all seen it, but probably with wish or moonlight instead of rest. It just makes more sense if your going to stall and then sweep (I assume that's your strategy) And Then there leaves an item. Well I would recommend leftovers because Excadrill is much better with Life orb. And It's ability is useless with this set. At least cute charm does something good.
Sylveon @ Leftovers/ Speed increasing berry (whichever that is)
Ability: Cute Charm
EVs: 252 SAtk / 252 SDef / 4 HP
Calm Nature
- Moonblast
- Psychic
- Calm Mind
- Wish/ Moonlight
Miltank
Actually this Miltank isn't actually that bad. Fair enough as a charizard-x it does suck since excadrill will screw it over with stealth rock and give a chance to switch to ferrothorn if it goes for outrage which is common on x. I am not amazing at showdown rules but I thought that an item can only be used on one Pokemon in OU please tell me if i'm wrong so I would recommend using a Lum berry because at least one of your Pokemon should have one. And sap sipper is amazing on this guy since he can completely stop sets relying on leach seed/ Spore.
Miltank @ Lum Berry
Ability: Sap Sipper
EVs: 252 HP / 252 Def / 252 SDef
Lax Nature
- Curse
- Double-Edge
- Earthquake
- Milk Drink
Medicham
Standard, good nothing else to say except use Jolly instead of Adamant.
Bisharp
How about some priority on this team? Sucker punch, life orb Bisharp is common for one reason, it's good.
Bisharp @ Life Orb
Ability: Defiant
EVs: 252 Atk / 252 Spd / 4 SDef
Adamant Nature
- Sucker Punch
- Iron Head
- Swords Dance
- Psycho Cut
Ferrothorn
Once again this is standard but swapping Protect for Power whip would be better as you need a grass type move to counter whiscash, swampert and the like. If your going to get rid of SR on excadrill or take excadrill out entirely then replace spikes with SR.
Ferrothorn @ Rocky Helmet
Ability: Iron Barbs
EVs: 252 Def / 184 SDef / 68 HP
+Def -SpD Nature
- Leech Seed
- Spikes
- Power Whip
- Gyro Ball
Excadrill
Read the above comment by $tar power but anyways. This is good but i'm sure it can learn better moves then Rock tomb. Also leftovers are almost useless on this so how about life orb or Air balloon.
Excadrill @ Life orb/ Air balloon
Ability: Mold Breaker
EVs: 252 Spe / 252 Atk / 4 Def
??? Nature
- Earthquake
- Stealth Rock
- Rapid Spin
- ??? Stone edge if it can learn it? Maybe iron head?
Overall good team. I would recommend starting with Excadrill and using SR as soon as possible because you have a noticeable weakness it fire.
