1 Oct 2012
Guild Feud has one target: the opponent. You'll see what creature that player puts onto the battlefield before revealing the top three cards of your library and deciding whether to put a creature onto the battlefield yourself.
1 Oct 2012
Players can't cast spells or activate abilities between the creatures being put onto the battlefield and them fighting each other. Notably, you can't respond with a spell like Giant Growth.
1 Oct 2012
If no creatures or only one creature is put onto the battlefield this way, no fight happens.
1 Oct 2012
Any abilities that trigger when the two creatures enter will be put on the stack after the fight, even if one or both creatures die.