Reveal 1 card in your hand, and if you do, add 1 of the following cards from your Deck to your hand, then shuffle the revealed card into the Deck.
• "ZW -" monster
• "ZS -" monster
• "Zexal" Spell/Trap
• "Rank-Up-Magic" Spell
• "Rank-Down-Magic" Spell
You can only activate 1 "Zexal Construction" per turn.