my apologies I was still stuck in gen7 teambuilding. Blastoise I chose the ability Wonder guard (WG) because it is a middling bulk water type, and adds to the longevity of the team. Because none of the mons chosen are close enough to the power level needed for a more offensive structure, (with the only possibility being if the opponent was dumb enough to let you set up multiple shell smashes on snorlax or espeon unnoposed) I opted to make the team more defensively structured, with hazards, corrosive gas, and perish trapping to make progress which espeon or snorlax can then capitalize on and try to sweep off of. Tidy up is a hazard removal option that is not blocked by opposing wonder guard or Good as Gold, both of which can hamper rapid/mortal spin and defog respectively. At this point I have given up on not making the team too defensive
Here it is:
Pikachu @ Ability Shield
Ability: Wonder Guard
Tera Type: Grass
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Revival Blessing
- Lunar Dance
- Spikes
- Taunt
Venusaur-Mega @ Black Sludge
Ability: Magic Bounce
Tera Type: Dark
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe
Bold Nature
IVs: 0 Atk
- Tidy Up
- Revival Blessing
- Malignant Chain
- Perish Song
Espeon @ Life Orb
Ability: Magic Guard
Tera Type: Psychic
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe
Modest Nature
- Shell Smash
- Photon Geyser
- Electro Drift
- Secret Sword
Blastoise @ Ability Shield
Ability: Wonder Guard
Tera Type: Steel
EVs: 252 HP / 252 Def / 252 SpD
Sassy Nature
IVs: 0 Atk / 0 Spe
- Revival Blessing
- Lunar Dance
- Corrosive Gas
- Tidy Up
Snorlax @ Ability Shield
Ability: Huge Power
Tera Type: Steel
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe
Adamant Nature
- Shell Smash
- Sunsteel Strike
- Corrosive Gas
- Collision Course
Lapras @ Ability Shield
Ability: Shadow Tag
Tera Type: Fire
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe
Calm Nature
IVs: 0 Atk
- Perish Song
- Burning Bulwark
- Encore
- Haze