Solrock

If you have Lunatone in play, damage counters can't be removed from any Pokémon (both yours and your opponent's). (Damage counters can still be moved.)

Sun Flash

Fighting

20

If the Defending Pokémon tries to attack during your opponent's next turn, your opponent flips a coin. If tails, that attack does nothing.

Flavor Text

When it rotates itself, it gives off light similar to the sun, thus blinding its foes.