Yamask is one creepy mofo.
“These Pokémon arose from the spirits of people interred in graves in past ages. Each retains memories of its former life.” -Pokemon White Pokedex
There you go. “Arose from the spirits of people”. PEOPLE. In the Pokemon world there IS eternal life after death. Eternal life as a Pokemon, that is. “Each retains memories of its former life.” Hmm…mhmmm! Not only are they the spirits of former humans, they also remember everything from when they were a human! And here we are, trainers catching these Pokemon and forcing them to fight. With this in mind I hope you do realize that whenever your Yamask does it’s little battlecry when you send it out to fight, “YAMASK!!”, it’s probably thinking, “hey, it’s grandma, don’t make me fight!”
“Each of them carries a mask that used to be its face when it was human. Sometimes they look at it and cry.” -Pokemon Black Pokedex
Need I say more? Imagine this: one moment you’re driving, a car hits you, everything goes black. You wake up moment later, dazed, in some unknown place. There’s a mask in your hand…tail? Huh? You look at the mask…it’s your face. You try to scream out…but all you can manage to say is “Yamask!”. Someone comes along, has their Charizard fire blast you to a crisp, and catches you…forever forcing you to accept what you’ve become and to battle other pokemon (most likely what you’ve done to many Pokemon in your former human life). And all you can do is look at your face and cry at once was.
Yamask is one CREEPY mofo.