If Lapras has any damage counters on it, remove 2 of them from it (1 if it only has 1). If the Defending Pokémon has any damage counters on it, remove 2 of them from it (1 if it only has 1). The Defending Pokémon is now Asleep.

Flip a coin. If heads, the Defending Pokémon is now Paralyzed.