>>19680313Straight from bulbapedo
If a Pokémon has any IV of 0, he will use one of the following lines:
"But its HP... It's pretty dismal, you know?"
"But that Attack stat... It's terrible..."
"But how can you make it through battle with this kind of Defense stat?"
"But this Sp. Atk won't even leave a scratch on an opponent..."
"But this low of a Sp. Def stat is going to leave you high and dry..."
"But you won't get anywhere fast with this low of a Speed stat..."
(And if there are 2 or more IVs of 0, then he will also use one of the following lines:)
"And that's quite a disappointing Attack stat there, isn't it?"
"And that Defense stat is nothing to write home about, you know?"
"And I'm afraid that its Sp. Atk is pretty bad, too..."
"And it looks like it's no great shakes when it comes to Sp. Def either..."
"And that Speed stat... Well, it's nothing to brag about, that's for sure."
In the rare event that all six of the Pokémon's IVs are 0, then he will describe how all its stats are its best stats, and then describe how all of them are bad.