Attacks » Slow Crunch
If Pinsir uses "Slow Crunch" and retreats or is KO'd on the opponent's next turn, does the opponent's active Pokemon still get Knocked Out?
Yes, the effect is on the Pokemon that was attacked with Slow Crunch.
Source: Twilight Masquerade FAQ; TPCi Rules Team (2024-05-23)
Attacks » Slow Crunch
If I use Pinsir's "Slow Crunch" attack and the Opponent's Active Pokemon retreats or evolves, is it still Knocked Out?
No. Evolving or moving to the bench removes all attack effects.
Source: Twilight Masquerade FAQ; TPCi Rules Team (2024-05-23)