Since this was nominated for OMotM, I decided to do some work here on abilities
Anger Point works even when you're behind a sub
Anticipation activities if the opponent has Self Destruct and Exploison as well as Counter, Mirror Coat, and Metal Burst, but with the latter 3 only if the the poke is weak to Fighting, Psychic, and Steel respectively
Color Change activates after the first hit of a Multi Strike move (While this may seem like it doesn't matter, it makes Kecleon only weak to the first hit of Arm Thrust, also it resists all but the first hits)
Pressure is no longer revealed to the opponent when the Pokemon switches in
Klutz doesn't prevent the user from using Fling
Leaf Guard doesn't prevent the use of rest under sun