■ Guard Strike (When you add this spell from your shield zone to your hand , you may reveal it to your opponent and choose one of your opponent 's creatures . That creature can't attack this turn .)

■ Put the top card of your deck face down into your mana zone tapped . (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.)

■ Crystal Arms 2: If you have 2 or more face down cards in your mana zone , put the top card of your deck into your mana zone face down .