Thunder Stone

Description
A Thunder Stone is an Evolutional Stone that evolves certain Electric Type pokemon. This stone is round as has some "Frozen" lightning in the centre of it.

A Thunder Stone is required to evolve:

 * Pikachu into Raichu


 * Eevee into Jolteon


 * Eelektrik into Eelektross

Drops from:

 * All electric pokemon in the wild; Drop rate unknown.