Claw fossil's Pokebody

[Loser626]

Claw Fossil Pokebody - Jagged Stone
If Claw Fossil is your Active Pokémon and is damaged by an opponent's attack (even if Claw Fossil is Knocked Out), put 1 damage counter on the Attacking Pokémon.

Kabutops Ex's Attack - Spiral Drain 70
Remove 2 damage counters from Kabutops ex (remove 1 if there is only 1).

If I attack claw fossil with Kabutops Ex's Spiral Drain, is Claw Fossil's Pokebody used before or after Kabutops Ex's Effect?

 

[PokePop]

Here's a similar situation:

Q. Considering the wording of Pelipper's "Swallow" attack, does the damage on Pelipper get removed BEFORE or AFTER Claw Fossil's "Jagged Stone" Poke-Body damages Pelipper? Jagged Stone places 1 damage counter on Pelipper as a result of Pelipper's attack, then the text of Swallow says to remove damage counters AFTER the attack (implying that the attack has been completely resolved).
A. The language used for Swallow is over-specific. The process at the end of the attack: Do damage; next, do the rest of the Attacking Pokemon's effects; lastly, do any of the Defending Pokemon's effects. So in this case, Pelipper's Swallow removes damage counters FIRST (if any), and then Claw Fossil's "Jagged Stone" kicks in afterward. (Oct 30, 2003 PUI Rules Team)

Note to TC: We need to add this ruling under "Jagged Stone". It's only under "Swallow"