Does Karma's ability trigger when the owner of Karma plays Sabotage and chooses a card for the opponent to recycle?

Ruling: No, Karma's ability does not trigger when you play Sabotage. The opponent is the one actually recycling the card due to Sabotage's effect, so you do not get the trigger from Karma.

Nuances:

• Sabotage's text specifies that the opponent reveals and recycles the card, making them the one taking the recycle action
• Even though you choose which card, the opponent performs the recycle action