■ Shield Trigger (When this spell is put into your hand from your shield zone , you may cast it immediately for no cost .)

■ Choose one of your opponent 's elements that costs 4 or less and destroy it.

■ You may turn a card in your mana zone face down . (A face down card in your mana zone is treated as a colorless card with a mana number of 1. Its owner may look at them at any time.)