need team ideas

i need to replace either mew or melotta to a sand counter pokemon


mew is a starter / rock set up


mel is a anti rain pokemon



idk what one should go or what pokemon works good in a anti meta game stall team


please help me here

Can you post the whole team and sets?

Trait: Levitate
EVs: 252 HP / 252 Def / 4 Spd
Bold Nature (+Def, -Atk)
- Moonlight
- Psychic
- Thunder Wave
- Hidden Power [Fighting]

Mew @ Leftovers
Trait: Synchronize
EVs: 124 HP / 180 Def / 204 SDef
Impish Nature (+Def, -SAtk)
- Thunder Wave
- Stealth Rock
- Seismic Toss
- Roost

Meloetta @ Life Orb
Trait: Serene Grace
EVs: 56 Atk / 252 SAtk / 200 Spd
Naive Nature (+Spd, -SDef)
- Relic Song
- Psychic
- Thunder
- Close Combat

Skarmory (F) @ Leftovers
Trait: Sturdy
EVs: 252 HP / 232 Def / 24 Spd
Impish Nature (+Def, -SAtk)
- Roost
- Spikes
- Whirlwind
- Brave Bird

Chansey (F) @ Eviolite
Trait: Natural Cure
EVs: 252 HP / 252 Def / 4 Spd
Bold Nature (+Def, -Atk)
- Wish
- Heal Bell
- Seismic Toss
- Thunder Wave

Jirachi @ Leftovers
Trait: Serene Grace
EVs: 80 HP / 252 Atk / 176 Spd
Jolly Nature (+Spd, -SAtk)
- Substitute
- Iron Head
- Thunder Wave
- Ice Punch

Forretress (F) @ Leftovers
Trait: Sturdy
EVs: 252 HP / 252 Def
Relaxed Nature (+Def, -Spd)
- Toxic Spikes
- Stealth Rock
- Spikes
- Rapid Spin

Chansey (F) @ Eviolite
Trait: Natural Cure
EVs: 252 HP / 252 SDef
Calm Nature (+SDef, -Atk)
- Thunder Wave
- Wish
- Seismic Toss
- Heal Bell

Skarmory (M) @ Red Card
Trait: Sturdy
EVs: 252 HP / 252 Def
Impish Nature (+Def, -SAtk)
- Whirlwind
- Stealth Rock
- Drill Peck
- Roost

Jirachi @ King's Rock
Trait: Serene Grace
EVs: 252 HP / 128 Atk / 128 Def
Impish Nature (+Def, -SAtk)
- Thunder Wave
- Wish
- Iron Head
- Cosmic Power

Espeon (F) @ Red Card
Trait: Magic Bounce
EVs: 252 HP / 252 SDef
Calm Nature (+SDef, -Atk)
- Heal Bell
- Wish
- Protect
- Psychic

Dusclops (F) @ Eviolite
Trait: Pressure
EVs: 252 Def / 252 SDef
Relaxed Nature (+Def, -Spd)
- Trick Room
- Seismic Toss
- Pain Split
- Confuse Ray