Lapras @ Choice Specs  
Ability: Water Absorb  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Hydro Pump  
- Surf  
- Freeze-Dry  
- Frost Breath  

Lapras @ Leftovers  
Ability: Hydration  
EVs: 248 HP / 92 SpD / 168 Spe  
Timid Nature  
IVs: 0 Atk  
- Whirlpool  
- Perish Song  
- Rest  
- Rain Dance  

Additional Moves: Block, Heal Bell, Toxic, Substitute, Sleep Talk, Ice Beam, Ice Shard
Additional Items: Waterium Z, Icicle Plate, Splash Plate, Assault Vest
Notes: Lapras has a small niche as a Choice Specs attacker or a Perish Song trapper. Freeze Dry + Hydro Pump gives it excellent neutral coverage while Frost Breath pressures Calm Mind users who might try and set up against it. Hydration + Rest allows Perish-Trap Lapras to remove annoying defensive pokemon without fearing status spam from the likes of toxic and provides a more consistent recovery option than rest-talk. 168+ speed evs allows it to outpace non-invested Vigoroth, allowing you Perish Song before it can Taunt you.