Routing notes:
- Sassy nature is needed to go fast in the early battles, but Sassy Pokemon do not outspeed Crobat (Silver) or Slaking (Gold)
- Raikou and Zapdos dominate the Spenser fights, but they don't use Hidden Power effectively against non-Ground types
- Sassy CB Slaking with Return is considerable, but team needs Steel/Rock support

Ideas:
- Latios (Sassy @ Lum Berry, Psychic/TB/Surf/DC)
- Raikou (Hasty @ Magnet, TB/Crunch/Calm Mind/nothing)
- Slaking (Sassy @ Choice Band, Double-Edge/Shadow Ball/Hyper Beam/EQ)