The Third Mythisch, Heljasstvinr Helgvarr: DZ Booster Set 10: Dragonsoul Resonance

[AUTO]:When this unit is placed on (RC) other than during the battle phase, choose a grade 3 card with Veissrugr in its card name from your ride deck, and you may reveal it. If you revealed a card, or you have a grade 3 or greater vanguard with Veissrugr in its card name, perform one of the following, and shuffle the deck. -Look at the top five cards of your deck, choose up to one card with Veissrugr in its card name or up to one Lunarite card from among them, reveal it and put it into hand. -If you persona rode this turn, [COST][Energy-Blast 3], search your deck for up to one Lunarite card, reveal it and put it into hand. [AUTO](RC):At the end of the battle this unit boosted, if you have a grade 3 or greater vanguard with Veissrugr in its card name, [COST][put this unit into soul], and [Counter-Charge 1].