Do you know how easy it is to avoid that super? Literally walking away or airdodging beats it. I personally consider it one of the worst supers in the game with Sly's level 2 and Nariko's level 2.
Toro: Toro is pretty good as an AA character, IMO. Staying in Torobi stance and making use of the shuriken, bicycle kick, and slide can stop a charging Kat, and his Oni stance up-circle can probably do a bit of damage against Kat as well. However, his Supers are incredibly poor against air characters, so unless he can get lucky and hit a divekick, he has to hope that he can catch Kat nappin' with his lvl2 to be effective. I'd say 0 or -1 for Kat, depending on how grounded she is during the match.
Uh..not his Level 2. The fact that the star hits people on the way down even before it touches the ground is very effective, I've gotten several players in the air with Toros level 2 because they thought they were safe if they weren't on the ground.
It causes a lot of rage quitters too