Stealth Dragon, Hitodama Handler (G-BT10/082EN) [Raging Clash of the Blade Fangs]

[AUTO]: Forerunner [AUTO](RC):[Choose this card and one "Covert Demonic Dragon, Hyakki Vogue "Reverse"" on your (RC), and put them into your soul] When your vanguard attacks, you may pay the cost. If you do, search your deck for up to one "Covert Demonic Dragon, Hyakki Vogue "Reverse"", call it to (RC), shuffle your deck, it gets [Power]+5000 until end of turn, and at the end of that turn, put that unit on the bottom of your deck.