You usually should not use Claydol, as it is heavily outclassed and has a very small niche, but if you do choose to use it, you should spin away entry hazards whenever possible and set up Stealth Rock using its decent bulk. Prediction might be needed if the opponent has Doublade in their team, as Claydol can 2HKO it with Earth Power. If the opponent has other Ghost-types that can potentially block the Rapid Spin, then using Toxic as they switch in is ideal. Also, keep in mind that Claydol loses a lot of momentum, so it shouldn't be used on offensive teams. It is best used on teams that require an Electric-type check and an entry hazard remover, but cannot afford to use Defog because they are using Spikes or Toxic Spikes.