Fantasy Petal Storm, Shirayuki

(This ability is active if you have four or more damage):[ 1 & Choose a card named "Fantasy Petal Storm, Shirayuki" from your hand, and discard it] At the beginning of the guard step of the battle that this unit was attacked, you may pay the cost. If you do, choose an attacking unit, and that unit gets -20000 until end of that battle. /:Lord (If you have a unit without a same clan as this unit, this unit cannot attack)