I don't think this is supposed to happen with pursuit

[KurashiDragon]

Start of turn 24
Borutorosu used Volt Switch!
The foe's Black Santa lost 18% of its health!
Borutorosu is being sent back!
The foe's Black Santa used Pursuit!
Borutorosu lost 85 HP! (28% of its health)

KurashiDragon called Borutorosu back!
KurashiDragon sent out Latios!
Pointed stones dug into Latios!

 

[toshimelonhead]

That is part of the new Pursuit/U-Turn mechanics of Gen5.

 

[ShinyAzelf]

That is part of the new Pursuit/U-Turn mechanics of Gen5.

Um...if I remember correctly, it was like that in 4th gen too. I remember leading with CB Azelf vs a Tyranitar. I U-turned and did 60%, then Azelf fainted from Pursuit.

 

[Rising_Dusk]

There's no bug here. And even if there were, this isn't the place to report it!