Forewarn
When it enters a battle, the Pokémon can tell one of the moves an opposing Pokémon has.
Synchronize
The attacker will receive the same status condition if it inflicts a burn, poison, or paralysis to the Pokémon.
When dark mists emanate from its body, don’t get too near. If you do, your nightmares will become reality.
It drowses and dreams all the time. It’s best to leave it be if it’s just woken up, as it’s a terrible grump when freshly roused from sleep.