Cardfight!! Vanguard - Dragonsoul Resonance - SpreadingChorus, Eerlis (FR) DZ-BT10/FR42EN

[AUTO]:When this unit is placed on (RC), look at the top seven cards of your deck, choose up to one Sound System card, discard it, and shuffle the deck. [AUTO]:When this unit is retired from (RC), if you have a grade 3 or greater vanguard with "Artisaria" in its card name, call up to one Shadow Army token to a back row (RC).