Evolve Eevee into Regional Jolteon

Requirements

You'll need a standard Eevee and a Thunder Stone. The evolution must occur in a desert biome or sandy environment.

Evolution Steps

1. Catch or locate an Eevee in your team.

2. Obtain a Thunder Stone through crafting, trading, or exploration.

3. Navigate to a desert biome in your world.

4. Use the Thunder Stone on your Eevee while in the desert. The evolution will complete immediately.

5. Check your Pokédex to confirm the new regional form has been registered.

Combat Advantages

Regional Jolteon is Electric/Ground type, giving it unique resistances and coverage. It controls sand and magnetic fields to strike multiple grounded opponents simultaneously. This makes it particularly effective in double or triple battles.

Its signature move generates sandstorm effects while dealing damage, combining offensive and field-control strategies. Use this form when you need area-of-effect damage or when facing teams with multiple grounded Pokémon. The regional variant has distinct visual differences from standard Jolteon, and shiny variants display unique coloration patterns.