http://replay.pokemonshowdown.com/ou-251052457
This method is based on double pickup, so me and my opponent shares the same leppa berry for infinity and beyonds. Note that this was just a test battle for the mecanics, I didn't make the best plays (should have kept one Block PP in case he tries to PPwast me, since in this case, rest is more useful). But otherwise it works as long as I get the trap.
The team can probably be optimized though, I just brought slightly different trappers so I can face more Pokémon.
Smeargle @ Focus Sash
Ability: Own Tempo
EVs: 248 HP / 8 SpD / 252 Spe
Timid Nature
- Spore
- Cosmic Power
- Baton Pass
- Mean Look
Gardevoir @ Leppa Berry
Ability: Trace
EVs: 252 HP / 4 Def / 252 SpD
Calm Nature
- Mean Look
- Rest
- Calm Mind
- Sleep Talk
Gourgeist-Small
Ability: Pickup
EVs: 248 HP / 8 SpD / 252 Spe
Timid Nature
- Trick
- Skill Swap
- Confide
- Magic Coat
Gothitelle @ Leppa Berry
Ability: Shadow Tag
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
- Mean Look
- Role Play
- Rest
- Calm Mind
Mew @ Leppa Berry
Ability: Synchronize
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
- Block
- Role Play
- Iron Defense
- Rest
Landorus-Therian @ Leppa Berry
Ability: Intimidate
EVs: 252 HP / 252 Def / 4 SpD
Impish Nature
- Role Play
- Block
- Rest
- Bulk Up