Changes
Added it's effectiveness against Danger!'s, could probably be summarized with the Koa'li Meiru tip.
* This card is effective against a [[Koa'ki Meiru]] deck. Since your opponent is forced to permanently show his/her [[hand]], S/he cannot reveal any cards to you in order to satisfy the costs of keeping Koa'ki Meiru monsters on the field, and must either discard an "[[Iron Core of Koa'ki Meiru]]" or destroy the monsters.
* Similarly, it is very effective against any deck using [[Danger!]] cards.
* This card may have some uses in an [[Infernity]] deck, since you would have no cards in your hand most of the time so your opponent is the only one revealing his/her hand.
