Forum:Damage step questions

I stopped playing this game a little while back and when I came back I heard that there was a change that llimited what cards could be played during the Damage Step. I have a few questions on the Damage Step itself now.


 * Can I activate a card that changes the amount of monsters on the field to cause a replay if it isn't a monster battling? An example of this would be my opponent attacking with their Mystic Tomato against my Pyramid Turtle while they have another monster. Can I activate Compulsory Evacuation Device and target the monster that is not battling? How about the monster that is battling?

--LordGeovanni 06:37, March 18, 2010 (UTC)
 * What if the card indirectly changes Att or Def? An example of this would be my opponent attacking with their Mystic Tomato against my Muka Muka while I have two cards in my hand and a face-down Jar of Greed. Activating Jar of Greed will indirectly increase my monster's attack by 300 - enough to win the battle. Can i activate Jar of Greed during the Damage Step in such a case?