
I wrote a question to FFG's official rules forum.
Q: What would happen when I commit card like Daredevil or Copycat to another player at my location? Will the cards see no legal targets for the "after" ability since you can only commit 1 card to another player per skill test and I have already committed the Daredevil/Copycat as the one card? The other way I see it is that it lets you commit another card through the ability because of the Golden Rule. If that is the case does the same work for cards like Practice Makes Perfect or Butterfly Effect?
A: The rules permit each investigator to only commit 1 card to a skill test performed by another investigator. However, investigators may use card effects to commit more than 1 card in this way. In other words, the rules permit only 1 card to be committed, but it’s not a hard maximum. If you commit something like Daredevil with your 1 allowed committed card, you may use Daredevil’s ability to then commit a second card, and that is totally legal. Same goes for any other effect that instructs you to commit 1 or more cards.