Just in case it comes up later: Chip Away ignores any Defense/Special Defence changes of the opponent, positive or negative. The positive was already known, but I found out that it ignores Defense drops as well last night. I was using a Lickitung vs. one of Nimbasa's stadium trainers and first lowered its Defense with Screech, then used Chip Away. It did a really bad amount of damage, so I used Screech twice more and Chip Away still dealt the same paltry damage. Kind of unfortunate, but it's good to know. I'm assuming Sacred Sword works the same way. EDIT: Another little note--in Wild Pokémon Battles, Circle Throw and Dragon Tail, when used by the foe, don't seem to force your Pokémon out of battle. This may have been because my Pokémon were at a much higher level than the foe, though; I'll have to test it some more.