Tenacious Pursuit, Okarun

【AUTO】 [Put 1 card from your hand into your waiting room] When this card attacks, you may pay the cost. If you do, look at up to 4 cards from the top of your deck, choose up to 1 level 1 or higher card from among them, reveal it to your opponent, put it into your hand, and put the rest into your waiting room. (Climax are regarded as level 0)