This team is for Regular NatDex, not NatDex AG. This is the Team that I will also use for Radical Red as well since I find them to be similar.
Spyro (Charizard-Mega-Y) (M) @ Charizardite Y
Ability: Drought
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Weather Ball
- Solar Beam
- Scorching Sands
- Roost
Miller (Tyranitar) (M) @ Choice Band
Ability: Sand Stream
EVs: 228 Atk / 28 Def / 252 Spe
Adamant Nature
- Stone Edge
- Crunch
- Pursuit
- Superpower
Ronin (Excadrill) (F) @ Life Orb
Ability: Sand Rush
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Earthquake
- Iron Head
- Rock Slide
- Rapid Spin
Kraayt (Kommo-o) (M) @ Leftovers
Ability: Bulletproof
EVs: 246 HP / 196 SpD / 68 Spe
Careful Nature
- Drain Punch
- Earthquake
- Toxic
- Stealth Rock
Kakashi (Greninja) (M) @ Choice Scarf
Ability: Protean
EVs: 4 Atk / 252 SpA / 252 Spe
Naive Nature
- Hydro Pump
- Ice Beam
- U-turn
- Spikes
Nightwing (Gliscor) (F) @ Toxic Orb
Ability: Poison Heal
EVs: 244 HP / 52 Def / 78 SpD / 136 Spe
Jolly Nature
- Earthquake
- Knock Off
- Toxic
- Roost
This core was inherently built around supporting Mega Charizard Y to its fullest extent, so I thought that a Greninja with Extrasensory would be good to negate Toxapex as an answer. Greninja, in conjunction with the Gliscor, also helps to check the possibility of encountering Cinderace with Zard Y's Sun up. Excadrill compresses speed control as well as our Steel-type, while also giving secondary hazard removal due to Zard-Y's high maintenance nature in that regard. Kommo-o is used in order to check Ash Greninja while also setting up rocks, while Gliscor was there due to the need for a secondary Ace check as well as a Defogger and a hard pivot into whatever Pex set is being used.