Only 5 Hydro Pump PP

Candidates:
- Whiscash (if Amnesia; but 150+ Sp. Atk can just Waterfall and set up on Sealeo)
- Seaking (get better range than SW)
- Milotic (get better range than SW)
- Cacturne (can IB, but then need to Surf a Flygon)
- Gardevoir (can Waterfall with god +Sp. Atk)
- Sharpedo (get better range than SW)
- First Dusclops (get better range than Surf; takes 2 PP; can Waterfall with god +Sp. Atk)
- Second Dusclops (generally save a turn and damage unless -Sp. Atk or god +Sp. Atk)

Possible teach points:
- Route 126 (Whiscash, Seaking)
- Before Phoebe (Whiscash, Seaking, Cacturne, Gardevoir, Sharpedo)
- Before Glacia (Cacturne, Gardevoir, Dusclops, Dusclops)
- Before Drake with x/x/23+; teach over Shock Wave (Dusclops, Cradily, Metagross)