During a challenge, I play Simba as a magic card that gets added to my supporting friends. Simba's effect targets Friend cards you and your opponent control. Can I or my opponent choose to discard a friend that is "committed" to the challenge, similar to Olympia's discarding effect, or does it have to be a Friend/Magic Friend in my Friend Zone?
Q: If I play Simba during a Challenge, can I choose to discard a Friend I've already committed to the Challenge?