Forum:Imperial Custom and Legendary Six Samurai - Shi En

I need to get this clarified.

Player A controls a face-down Metal Reflect Slime and a face-up Imperial Custom. Player B control a face-up Legendary Six Samurai - Shi En.

Player A activates face-down Metal Reflect Slime.

Player B activate Legendary Six Samurai - Shi En to negate the activation of Metal Reflect Slime.

What happens and why?

Thanks.

98.119.189.57 (talk) 03:37, February 1, 2013 (UTC)