[L] Thundershock: 10
Flip a coin. If heads, the Defending Pokémon is now Paralyzed.
[C][C][C] Fly: 30
Flip a coin. If heads, during your opponent’s next turn, prevent all effects of attacks, including damage, done to Flying Pikachu; if tails, this attack does nothing (not even damage).
By learning how to fly, Pikachu overcame its weakness to Fighting Pokémon.