If I and my opponent both have a Torn Hero in play, and I commit his Torn Hero with a Stun 1-enhance, and he chooses to commit two of my foundations that are not Torn Hero, can I then use the R-ability and:
1. Pay 1 momentum, and commit Torn Hero instead of any other cards otherwise commited.
3. Pay 1 momentum, and commit Torn Hero instead of one other card otherwise commited.
3. Can't use the ability since it says "a card" and Torn Hero commits 2 cards.
Also, how would it work if I got stunned by a Stun 2 (or more)? Can I choose Torn Hero as one of them and then use the R-ability to commit it instead of the other one instead?