Within the Millenium Puzzle

[Ace487]

[img]http://img51.imageshack.us/img51/4571/199986.jpg[/img]
When your opponet attack's you or a monster you can choose one of they's effect.
*Flip a coin if your opponet guesses right continue attack, if not negate attack
*You choose a card in your hand and your opponet guess what card,if your opponet guesses right continue attack, if not

[MibeR]

When your opponent declare an attack you can activate one of this following effects :
*Flip a Coin and ask your opponent to call it. If your opponent calls it right, continue the attack. If not, negate the attack.
*Select a card in your hand and your opponent calls that card type. If your opponent calls it right, continue the attack. If not, negate the attack.

I Will better to choose the second one because it have 1/3 chance to Win. The first is useful in a Toss coin combo, so 7.5/10