Red Dragon Archfiend

[frostmonarch]

If I brain control my opponent's Red Dragon Archfiend and then attack with it, but leave another monster on his side of the field still in play, would the Dragon's effect destroy his monster(s) when it returns to his side of the field during the end phase? His monsters will not have attacked but the dragon would have, so would the dragons second effect go off?

Thanks

 

[Entropy]

The short answer is no.

You control both "Red Dragon Archfiend" and "Brain Control", so you decide the order in which they resolve.

You can resolve "Brain Control" first, and return "Red Dragon Archfiend" to your opponent. "Red Dragon Archfiend"'s effect won't activate, since it's no longer "your End Phase". Your refers to the monster's controller, and it's not its controller's End Phase.

Or, you can resolve "Red Dragon Archfiend"'s effect first and destroy all your monsters which didn't attack. Then resolve "Brain Control", and return "Red Dragon Archfiend" to your opponent.